Answer:
x=-16/3 and y =47/6
Explanation:
Subtract the 2 equations to eliminate the variable y
2x+2y=5
-(5x+2y=-11)
---------------
-3x=16
Divide by -3 on both sides
x= -16/3
Plug -16/3 in for x in the first equation to find y
2x+2y=5
2(-16/3)+2y=5
Multiply
-32/3+2y=5
Add 32/3 to both sides
2y=47/3
Divide both sides by 2
y=47/6
x=-16/3 and y =47/6
Hope this helps! :)
Evolution explains how Earth's present-day species developed from earlier species through A genetic engineering. B mass extinctions. C natural selection. D asexual reproduction.
Answer:
C.
Explanation:
Natural selection is how animals adapt to places for example how giraffes got long necks for eating plants.
Hope this helps
Evolution is the shift of hereditary features or characteristics in a population of organisms over a long period of time. Natural selection, a phenomena, is the process that best explains evolution. Hence option C is correct .
What is Evolution ?Natural selection is the process by which some inherited traits—like the hue of a fish's skin, a person's height, or the contour of a leaf—are preferred within a population. A population is a collection of creatures that reproduce and mate together.
According to the idea of evolution in biology, the many species of plants, animals, and other living things on Earth descended from earlier species, and their recognizable differences are the result of changes made by subsequent generations.
Evolution is governed by four principles: variation, inheritance, selection, and time.
These are regarded as the elements of natural selection's evolutionary mechanism. Hereditary variation serves as the foundation for Darwin's main point about evolution.
Darwin had learned from his experience with breeding animals and plants that it is possible to create differences that are "useful to man." Therefore, he concluded, natural changes must take place that are advantageous to or helpful to the organism itself in its struggle for survival.
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The focus of an earthquake is:
a) below the epicenter
b) on earths surface
c) directly above the epicenter
d) the same as the epicenter
Answer:
below the epicenter,is the correct answer.
The focus of an earthquake is below the epicenter.
Explanation:The focus of an earthquake is below the epicenter. The epicenter is the point on the Earth's surface directly above the focus. The focus is the actual location where the earthquake originates within the Earth's crust.
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Which phrase describes the relative age of a rock?
uses the law of superposition to determine which rock is older or younger
can determine the age based on location of a rock within the same layer
requires only one rock to determine the age
can provide the exact age of a rock
Answer:
A
Explanation:
The relative age of a rock is accurately described by the phrase that uses the law of superposition to determine the age of a rock as it suggests rocks are older at the bottom and get progressively younger towards the top.
Explanation:The phrase that accurately describes the relative age of a rock is the one that uses the law of superposition to determine which rock is older or younger. The law of superposition states that in undisturbed rock layers, the oldest rocks are at the bottom, and the rocks become progressively younger towards the top.
The phrase that discusses 'determining the age based on the location of a rock within the same layer' is partially accurate. However, it doesn't take into consideration that rocks within the same layer could have been deposited at different times, and hence may not have the same age.
The assertion that 'only one rock is needed to determine the age' is inaccurate. Relative dating usually involves comparing several rocks or fossils.
The phrase that suggests 'providing the exact age of a rock' does not represent the concept of relative age. That would rather represent absolute dating, which involves techniques like radiometric dating to determine the exact age of a rock or fossil.
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The hypothesis concerning the cause of magnetism is _
A. atoms all moving in the same direction
B. electrons all moving in the same direction
C. magnetic line-up of atoms
D. all of the above
The hypothesis concerning the cause of magnetism is electrons all moving in the same direction .
Explanation:
Magnetism is triggered by the electric charges being transferred. Each substance consists of tiny units, called atoms. Some of the electrons spin in the same direction, in substances like cobalt, nickel, and iron. That makes the atoms highly magnetic in this compounds-but they are not magnets yet.Magnetism is a physical property generated by electric charge movement which results in attractive and repulsive forces between objects.Answer:
electrons all moving in the same direction
Explanation:
Answer this and u get a cookie
Answer:c
Explanation:
What circumstances might prompt a community or country to switch to renewable energy?
If nonrenewable energy runs scarce where the community or country has no other choice but to use renewable energy.
Communities or countries might switch to renewable energy due to environmental concerns, geopolitical reasons and advancements in technology and economic incentives. Reducing greenhouse gas emissions, enhancing energy security, supporting local industries and taking advantage of government incentives are some of the motivating factors.
Explanation:Multiple circumstances might prompt a community or country to switch to renewable energy. Environmental concerns, particularly the growing awareness of climate change, often serve as a compelling reason. The burning of fossil fuels contributes to greenhouse gas emissions, and transitioning to renewable energy sources such as wind, solar, or hydroelectric power can significantly reduce these emissions.
Additionally, geopolitical considerations can factor into this decision. For communities or countries reliant on foreign oil, a switch to renewable sources can enhance energy security, reducing dependence on other nations. Using local renewable energy sources also helps promote domestic industries and hence the local economy.
Technological advancements and economic factors may provide another incentive. As technology continues to evolve, renewable energy options become more efficient and affordable. Furthermore, governments may provide tax incentives or other financial benefits to encourage the transition to renewables.
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What is the largest area in Canada and the United States that is densely populated (over 250 people per square mile)? What are four cities in that area
The largest densely populated area in Canada and the United States is the Northeast Megalopolis, which includes cities like New York City and Boston.
Explanation:The largest area in Canada and the United States that is densely populated (over 250 people per square mile) is the megalopolis that forms the corridor from Washington, D.C. to Boston. This area is known as the Northeast Megalopolis or the BosWash Megalopolis.
Four cities in this area include:
New York City, New YorkPhiladelphia, PennsylvaniaBaltimore, MarylandBoston, MassachusettsWhat causes the erosion of rocks on the moon’s surface?
effect of ultraviolet radiation from space
eruption of lunar volcanoes
impact of particles from space
weathering of wind-driven sand
Answer:
impact of particles from space
Explanation:
Impact of particles from space causes the erosion of rocks on the moon’s surface
what body of water is 40 degrees north and 135 degrees east
Answer:
The Sea of Japan
Explanation:
Select all the options that show 3,284 in unit form.
✓
32 hundreds, 84 tens
32 hundreds 34 ones
30 hundi, ds. 20 tens, 84 ones
3 thousands 2 hundreds 84 ones
1. In your own words, explain what Biodiversity is and describe the three types of Biodiversity.
2. The article describe 6 common threats to Biodiversity, elaborate on three by explaining in your own words and recount examples of each you see in your community.
3. Write something new you learned from the article! :)
1. biodiversity is the variety of animals in a given area
i cant help u with the rest if i canymt see the article
When plants, animals, people, the climate, the water and the soil all depend on each other, this is called... What?
Answer:
Explanation:
it would be Nutrient cycling All parts of the rainforest (climate, water, soils, plants, animals and people) are all dependent on one another.
The interdependence between plants, animals, people, climate, water, and soil is called an ecosystem.
Explanation:The interdependence between plants, animals, people, climate, water, and soil is called an ecosystem. Ecosystems are made up of living organisms and their physical environment, and they rely on the complex interactions between these components for their functioning. For example, plants rely on soil for nutrients and water, animals rely on plants for food, and people rely on ecosystems for resources such as food, water, and air.
Thus, an ecosystem is a community of living organisms in conjunction with the non-living components of their environment (air, water, soil) interacting as a functional unit. Ecosystems vary in size and complexity, playing a vital role in sustaining life by cycling nutrients, regulating climate, and providing habitats for diverse species.
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Write a short letter to the president explaining why we should protect the rainforest.
Answer:
Dear President,
I am writing this letter to you to tell you that the United States should at least consider protecting the rainforest. Here's why. First, the rainforests are the ONLY home to many animals because of the climate and conditions. If we allow people to start destroying these rainforests, tons of animals will become endangered and have no place to go. Second, think of the Amazon jungle for example. The Amazon jungle alone provides the 20% of the world's oxygen. This is because plants intake the carbon dioxide that humans breathe out, and emit oxygen, which humans need to be able to thrive. If we don't protect the rainforests, there will be an abundance of carbon dioxide in the atmosphere. Lastly, rainforests can provide many things for us, not including oxygen. Some of the plants could be used for medical purposes. Rainforests also keep the Earth's climate. If we don't protect them, the climate, along with the water cycle, could be affected. Thank you for taking the time to read this. I think it would be a very good thing to consider.
Sincerely,
In the letter to the president, first by starting to address the president and then in the body of the letter, it should be mentioned about why the rainforest of the US should be protected. And in the ending we should conclude with thanking the president for the time he took to read the letter.
What are the reasons that can be mentioned in the letter?The reasons that can be mentioned in the letter are: First, the rainforests are the only home to many animals because of the climate and conditions. If we allow people to start destroying these rainforests, tons of animals will become endangered and have no place to go.
Second, think of the Amazon Jungle for example. The Amazon jungle alone provides 20% of the world's oxygen. This is because plants intake the carbon dioxide that humans breathe out, and emit oxygen, which humans need to be able to thrive. If we don't protect the rainforests, there will be an abundance of carbon dioxide in the atmosphere. Lastly, rainforests can provide many things for us, not Including oxygen. Some of the plants could be used for medical purposes. Rainforests also keep the Earth's climate.
If we don't protect them, the climate, along with the water cycle, could be affected.
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Part II: Answer after working through the collaborative (group) assignment:
1. In relation to the application of von Thunen's model and associated assumptions, both past and present:
Please answer the following:
a. From your reading, your collaborative analysis and associated interpretation, identify and discuss a
specific agricultural example in which the process of production to consumption supports von Thunen's
assumptions noted from the reading and your associated interpretation
b. From your reading, your collaborative analysis and associated interpretation, identify and discuss a
specific agricultural example in which the process of production to consumption does not support von
Thunen's assumptions noted from the reading and your associated interpretation.
c. From your reading, your collaborative analysis and associated interpretation, does the process of
modern agribusiness and vertical integration support the premise of von Thunen's locational theory of
agriculture?
Please keep in mind historical context when doing this analysis. I.e. Von Thunen suggested this model
approx. 180 years ago! Also, please try to give specific examples wherever you can.
The von Thunen model assumes isolated states with only distance from the market as a variable. Dairy farming supports this model given perishability and transport time considerations. However, advancement in technology and vertical integration in modern agribusiness challenge von Thunen's model, as seen in the example of strawberry farms in California.
Explanation:In regard to the von Thunen model, it assumes an isolated state with homogenous physical and climatic conditions where the only variable is distance from the market. Agricultural practices closest to the market center tend to be those requiring intense care.
For example, dairy farms, which are highly perishable and require quick transport to the market, are typically close to their market. This directly supports von Thunen's assumptions about the choice of crops based on transport costs and distance to market.
However, with the advent of modern transportation and refrigeration technologies, the correlations von Thunen noted may not always apply. For instance, strawberries are grown in California and transported all over the United States, contrary to von Thunen's model that would place such high-value, perishable crops near the market.
As for the modern agribusiness and vertical integration, they somewhat disrupt von Thunen's model. Due to the integration and control of several steps of the production process by a single firm, proximity to the market becomes less critical.
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if you have a free time, please help. It's a slide I think.
Also you can get 100 points if you want this.
Assignment
Conserving and Recycling Presentation
There are countless environmental, conservation, recycling, and energy resource organizations at city and state levels (in addition to national and global organizations and agencies). In this assignment, you will research a city or state organization in your hometown or state. For example, if you live in Colorado, you might research the Colorado Association for Recycling.
From your study of the organization, you will research and design methods for monitoring and minimizing human impact on the environment. Your designs for monitoring and minimizing will come from the organization’s purpose or goals. For example, if the purpose of the organization is recycling, you could develop a method for how to monitor the amount of recycled materials in the home and develop a method for minimizing the amount of recyclables that end up in the trash at home.
You will create a presentation about the organization and your own design. You will describe what the organization is about and how people can get involved. You will describe the design and details of your plans for monitoring and minimizing human impact. Your presentation will be eight to ten slides in length and should include the following information:
• Title
• Introduction – overview of the organization
• Organization’s purpose and goals
• Types of events
• Type of education (environmental, conservation, or recycling) it provides
• Conservation policies – advantages and disadvantages (i.e., the cost/benefit tradeoff) of policies the organization is involved in
• Design method for monitoring human impact
• Design method for minimizing human impact
• Sources – websites you used and contact information for the organization
Remember to make a list (bulleted, numbered, etc.) on each slide. The slides should feature highlights of the slide’s title. The bullet points should be short phrases (at most, one sentence) that highlight some key points.
Answer:
As given below.
Explanation:
Title: Conserving and Recycling
Introduction - Conservation is an act of preserving and managing the resources of the earth for a sustainable future by preserving and allowing for the regeneration of potential.
Organization's purpose and goals: To aim to recycle and reutilize resources.
To aim to manage and reduce wastes. To aim to reorganize and monitor anthropogenic activities.
Types of events: City waste management.
Type of education: mitigation
Conservation policies: Use of three Rs and CSR.
What major river flows through the south of the U.S.A?
Answer:
Mississippi River
Explanation:
It goes north to south and its flows 2,340 miles north to south from Minnesota to the Gulf of Mexico in Louisiana
Answer:
Mississippi River
The Mississippi River is one of the most important rivers in the United States. It flows 2,340 miles north to south from Minnesota to the Gulf of Mexico in Louisiana.
Explanation:
The Mississippi River is one of the most important rivers in the United States. It flows 2,340 miles north to south from Minnesota to the Gulf of Mexico in Louisiana.
Describe what a front is
money in advance to pay for something. FRONT MONEY - money in advance to pay for something
True or false: New Jersey has 127 miles of coastline on the Pacific Ocean?
Answer:
false
Explanation:
It is on the coastline of the altantic
Describe the structure of Afghanistan's government.
Answer:
The Government of the Islamic Republic of Afghanistan has 34 provinces. For a five-year term, the president is elected by majority popular vote. A candidate must earn more than fifty percent of the vote to be elected outright. There is a run-off election for the top two vote getters if no one earns more than fifty percent. A president can, if reelected, serve a second five-year term. Two branches belong to the National Assembly. There are 102 seats in the Meshrano Jirga, or House of Elders. Its members are elected by different means for three-, four-, or five-year terms. There are 249 seats in the Wolesi Jirga, or House of People. Its members are elected to serve five-year terms directly. There are nine judges on the Stera Mahkama, or Supreme Court. The president appoints them and the Wolesi Jirga approves them. Ten-year terms are held by the judges. A second term can't serve them. Main courts, appeals courts, and special courts also belong to the judicial branch. As of 2016, there were fifty-seven political parties in Afghanistan.
Hopefully, this helps! :D
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According to the ongoing situation in Afghanistan in which the Taliban took over rule of government on September 7th 2021, the structure of Afghanistan's government is led by a Supreme Leader.
The Supreme Leader of the Afghanistan government is the Head of the Islamic Emirate of Afghanistan.
Supreme Leader also possess authority on all political, military, religious rulings, and government authorizations.
Aside from the Supreme Leaders, there is also a Leadership Council known as the Rahbari Shura. This council consists of 26 members.
Also, there is a Cabinet that is made of 33 ministers aside from the Supreme Leader.
Hence, in this case, it is concluded that the structure of the Afghanistan government is a Supreme Leader system of rule.
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Which of the following in not a major environmental issues in Europe?
A-increased biodiversity
B-soil erosion
C-pollution
D-lost of habitat
Which of the following describes how metamorphic rock forms? A Tectonic plate boundaries break apart an existing parent rock. B An igneous rock deep in the Earth is exposed to hot material. C Molten rock solidifies and hardens on top of the Earth’s crust. D A parent rock is baked and melted into liquid rock in the Earth.
Answer:
B
Explanation:
According to the passage, “Metamorphic rocks form when existing “parent” rocks change because of intense heat and/or pressure.” Rock deep in the Earth is under a lot of pressure and can be “exposed to the hot material below the Earth’s crust.”
Metamorphic rock is created when an igneous rock is exposed to high heat, high pressure, and hot fluids rich in minerals. Therefore, option B is correct.
What is a metamorphic rock?The heating and pressing of igneous and sedimentary rocks produce metamorphic rocks.
Metamorphic rocks are created when rocks are exposed to great heat, pressure, hot mineral-rich fluids, or perhaps any combination of these elements. All of these conditions are present deep within the Earth.
A metamorphic rock is created when an igneous rock deep inside the Earth is exposed to heated material.
This is another outcome when intense heat or pressure, which is only present at lower levels of the Earth, causes rocks to alter their original form and identity.
As a result, metamorphic rock is produced when an igneous rock located deep inside the Earth is exposed to heated material.
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Which country was declared a US protectorate under the Platt Amendment?
A.
Puerto Rico
B.
Texas
C.
Guam
D.
Answer:
Cuba
Explanation:
Cuba was declared a United States protectorate under the Platt Amendment.
A mouse eats acorn and seeds on the ground. Then, a hawk eats the mouse. What is the hawks role in this food chain?
In the food chain described, the hawk is an apex predator, consuming a primary consumer (the mouse), and thus maintaining the balance within the ecosystem.
The hawk's role in the food chain described is that of a predator and specifically, an apex predator. The mouse that the hawk consumes feeds on acorns and seeds on the ground, positioning the mouse as a primary consumer, while the hawk, feeding on the mouse, is a secondary consumer. However, since the hawk is not typically preyed upon by other species in this scenario, it functions at the top of this particular food chain as an apex predator.
Raptors like hawks play a key role in maintaining the balance of ecosystems by regulating populations of small mammals and other prey species. Their role is crucial for a stable ecosystem, ensuring that no single species becomes overly dominant and that energy flow within the food web is maintained.
which was the main motivation for the settling the middle colonies by england and the netherlands
Answer:
I believe the answer is, the search for rich farming land
Explanation:
slaveeeeeeeeeeeee
Explanation:
n the box below, briefly write what you think could happen if there were a sequel to the Dr. Seuss story- The
Lorax. For example, in the sequel, you might explain how the Trufflula Tree made a comeback through
replanting and proper care or what the new managers of the Truffula Tree Company are going to do to help
keep the environment safe and at the same time make Thneeds. (Two paragraph minimum)
Answer:
THE LORAX COULD USE HIS MAGIC POWERS TO MAKE THE TRUFFULA TREES GROW LIKE CRAZY
Explanation:
20 POINTS PLEASE HELP!! Which area is best represented by the letter B on this map?
a depression
a peak
a valley near a mountain
a slope on the side of a mountain
Final answer:
Area B on a map could represent a variety of geographical features depending on the contour patterns, such as a depression, peak, valley, or slope. The steepness of the slope can be inferred from the spacing of the contour lines.
Explanation:
Area B on a topographic map can represent different geographical features such as a depression, a peak, a valley, or a slope, depending on the specific contour patterns indicated. For a depression, the map would show closed contour lines with tick marks on the downslope side indicating decreasing elevation toward the center. A peak would be represented by closed contours with increasing elevation toward the center.
A valley would show contour lines forming 'V' shapes that point uphill. Lastly, a slope on the side of a mountain would be depicted by contour lines that are closer together on one side compared to other sides, indicating a steep grade. When determining the steepness of an area on a contour map, the spacing of the contour lines is key. If the contour lines are closer together from A to B than from B to C, then the slope is steeper between A and B.
Which discovery by astronomer Vera Rubin helped prove the existence of dark matter?
Answer: The discovery of galaxy rotation rates helped prove the existence of dark matter.
Answer:
Answer: The discovery of galaxy rotation rates helped prove the existence of dark matter.
Explanation:
i just took the test its right :)
Can you tell me the time in this picture below? It's about sundials which I don't get.
Answer:
4 30 is the answer .........
hello:) why are stratovolcanoes found along pacific ring of fire and not shield volcanoes?
4. Magma can be created from mantle rock when:
a. Temperature rises c. Water is added
b. Pressure lowers d. All of the above