E-mail, texting, and social media have largely replaced

Each step in the FOOD CHAIN contains appropriate numbers of organisms

If one group becomes too numerous, the chain becomes UNBALANCED

Each step in the FOOD CHAIN contains appropriate numbers of organisms

For example, agricultural runoff creates a SURPLUS of nutrients which can cause sudden INCREASES in algae growth

Each step in the FOOD CHAIN contains appropriate numbers of organisms

Too much algae blocks sunlight from reaching vascular plants

Each step in the FOOD CHAIN contains appropriate numbers of organisms

Too few plants means LESS FOOD for herbivores

Answer:

Ecosystem health is a metaphor used to describe the condition of an ecosystem. Ecosystem condition can vary as a result of fire, flooding, drought, extinctions, invasive species, climate change, mining, over exploitation in fishing, farming or logging, chemical spills, and a host of others

Explain:

The correct answer is - 4.543 billion years.

Our planet, the Earth, is considered to have formed approximately 4.543 billion year ago. It is thought that the Earth had formed at roughly the same time with the other planets, or rather they all formed in a relatively small space of time.

The Earth is part of the inner planets, and it is the the third most closest to the star in our galaxy, the Sun. Also, it is the only planet on which is known that life can exist, at least so far, as it is the only planet that provides the right conditions for the development of living organisms.

The biggest interaction that the Earth has is with the gravitational pull of the Sun and the Moon, the only natural satellite of the Earth.

The currently accepted age of Earth is estimated to be between 4.4 and 4.57 billion years based on scientific methods, including radioactive dating. This greatly surpasses the previously believed age of 6,000 years, providing important context for the development of life on Earth.

The currently accepted age of Earth is estimated to be between 4.4 and 4.57 billion years based on various scientific methods, including radioactive dating of rocks and minerals. The oldest known rocks on Earth are approximately 4.404 billion years old, while the oldest fossils are between 3 and 4 billion years old. This age of Earth greatly surpasses the previously believed age of only 6,000 years during Darwin's time, and it provides important context for understanding the development of life on our planet.

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An exchange of students, artists, athletes, etc. from different countries to enhance mutual understanding.

The island that lays 64 degrees west and 16 degrees north is known as Iceland.

Lines of latitude run parallel to the Equator and are called parallels. The equator is the largest circle of latitude on Earth.

Lines of latitude run parallel to the Equator.

Notice that all lines of latitude are parallel to the equator (they are often called parallels) and that the North Pole equals 90 degrees N and the South Pole equals 90 degrees S. Noted parallels include both the Tropic of Cancer and the Tropic of Capricorn, which are 23.5 degrees from the equator. At 66.5 degrees from the equator are the Arctic Circle and the Antarctic Circle near the North and South Pole, respectively.

The equator is the largest circle of latitude on Earth. The equator divides the earth into the Northern and Southern Hemispheres and is called 0 degrees latitude.

Final answer:

Most immigrants face major obstacles related to cultural adaptation, including language barriers and economic challenges such as low wages and debt. Ethnic enclaves provide community support but can lead to accusations of failing to assimilate and increased social tensions. The effects of immigration on a host country's economics and culture can also generate legislative challenges to immigrant movement and integration.

Explanation:

The major obstacle faced by most immigrants comes from the difficulties in adjusting to a new culture, including learning a new language and customs, and the economic challenges associated with low wages and the possibility of debt. Immigrants often settled in ethnic enclaves where they faced both prejudice and the perception of being 'clannish' or unwilling to assimilate into the larger society. These neighborhoods, however, helped them to preserve their cultural identity and eased the transition. Additionally, social tensions arose when different ethnic groups competed for the same cultural spaces and opportunities, further complicated by stereotypes and discrimination that varied based on ethnicity.

Economic factors are also a significant obstacle, as immigrants frequently found themselves earning just enough to survive, with dreams of financial independence being out of reach for many. Moreover, concerns about how immigration affects wages, taxes, and government spending lead to legislative actions that can prevent the free movement that most take for granted within their own country.

C.. mostly light grey moths

A mid-1600s map of North America showcases colonial settlements by European powers, depicting territorial competition and impact on indigenous cultures and socioeconomic structures.

When examining a map of colonial European settlements in North America from the mid-1600s, it reveals a complex tapestry of territorial claims and settlements by various European powers, including the English, Dutch, French, and Spanish. Each European nation sought to expand its empire, with settlements often strategically located to access resources, trade routes, and support military endeavors. The presence of Native American tribes is also noted, highlighting the rich indigenous cultures that existed before European colonization. The geopolitics of the era was marked by competition and conflict, as these powers vied for control and influence over the New World. This period also saw the introduction of slavery and significant shifts in agriculture, which had a profound impact on the social and economic fabric of the continent.

Like other people said the correct answer would be D because they all vote to try to pass the bill.

Answer:

A. (1) Senators vote to pass the bill. (2) The bill is sent to the president to sign.

Explanation:

Answer:

Tectonic processes has played most important role in shaping the physical landscape of east Africa.

Explanation:

A rift valley is a swamp area that appears where Earth's tectonic plates shift apart or rift. Rift valleys occur both on land and about the depths from the ocean, where all are formed by the process of seafloor expanding. Tectonic plates are tremendous, rocky parts of Earth's lithosphere—its outside and above the mantle.

The answer that describes how social networking sites help political campaigns, especially when compared to traditional media is stated below:

They enable campaigns to sample public opinion.

Social network has been introduced for a very long time now and politicians had the opportunity to use it in order to make their campaign widen its scope and for the people to be aware of the politician's point of view, missions, and visions.

Social-networking sites help political campaigns, than traditional media because they enable campaigns to sample public opinion.

Social networking serves as kind of networking that is internet-based which utilize

social media sites .

This type of networking is better than traditional one because it enable campaigns to sample public opinion.

learn more about social networking at;

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The statement is true.

The tundra is an area of our planet which is occupying the space in close proximity to the poles, mostly to the North Pole. The majority of the tundra is around the North Pole, and this is due to the land area that surrounds it, and it is occupying very little area around the south pole, only on few islands that are in close proximity to the Antarctic. The tundra is characterized with very long winters that are very cold and dry, and very short fresh summers. The animals and plants that live here are highly specialized, and the diversity is very small.

Answer:

True, the tundra climate is a area of low lying vegetation, and is can be very cold.

Explanation:

But next time, just so that people do not get confused, can you please state that it is a true or false question?

Answer:

Physical structure of the earths rock is changed by mechanical weathering.

Explanation:

Mechanical weathering is the method of busting big stones into small ones. This method usually occurs near the facade of the planet. Temperature also influences the land. The cold nights and hot days regularly make things to swell and contract. That change can effect rocks to crack and split apart.

Mechanical weather is the correct answer

The tide will be neap tide.

The moon has the strongest effect on the rise or fall of the tides due to its gravitation pull. The normal tides are always present in the ocean at different hours of a day. But in spring tides, the moon has its full phase, it has the strongest effect on the tides as high tides convert to highest tides and low tides to the lowest tide. In the neap tide, the low tide converts to lowest high tide and high tide converts to a highest low tide which makes the extreme difference between high and low tide.

Final answer:

A spring tide has the greatest difference between high and low water, creating the highest high tides and the lowest low tides, which occur near the times of new and full moons due to the aligned gravitational forces of the moon and the sun.

Explanation:

The type of tide with the greatest difference between high and low tide is known as a spring tide. It occurs near the times of the new and full moon when the gravitational pull of the moon and the sun are aligned. The combined gravitational forces exert a stronger pull on the Earth's oceans, leading to higher high tides and lower low tides, thus increasing the tidal range. Contrary to spring tides are neap tides, which occur during the moon's first or third quarter when the sun and moon are at right angles to each other, resulting in a smaller difference between high and low tides.

According to definitions provided in educational materials, it is during the spring tides that one may observe some rocks or shoals that are continuously covered by the sea at one time being laid bare at another. This tidal phenomenon is observed globally and is an essential aspect of oceanography. Coastal areas may experience different tidal patterns such as mixed semidiurnal, semidiurnal, and diurnal tides, but it is the spring tide that has the most significant tidal range.

Answer: a tecnologia tem desempenhado um duplo papel como uma importante ferramenta de instrução que pode ter um efeito significativo sobre o funcionamento global, político, social e econômico da sociedade americana.

Explanation:

Answer:

B

Explanation:

Earth has so few impact craters compared to the Moon because of erosion, plate tectonics, and volcanoes.

1. Erosion

Weather, running water, and plants all wear down the ground and level it out. The moon has none of these.

2. Plate tectonics

The Earths surface consists of several tectonic plates floating over a liquid core.

As the plates tear apart and crush against each other, new rocks form and older ones disappear.

Over billions of years, all traces of old impact craters have disappeared.

The moon has no moving plates, so tectonics cannot remove lunar craters.  

3. Volcanoes

Volcanic flows cover up impact craters. The Moon has not had active volcanoes for three billion years.

Earth has fewer visible impact craters than the Moon due to three main processes: plate tectonics, which recycles the Earth's crust; volcanism, which buries craters under lava and ash; and erosion, which weathers away and fills in craters.

Earth's surface is considered "young" compared to the Moon because it exhibits few visible impact craters. Despite being struck by interplanetary debris at about the same rate as the Moon, Earth's craters have largely been erased due to several key processes:

These geological activities are largely absent on the Moon, which is why its surface is saturated with craters, offering a stark contrast to Earth's rejuvenating landscape. The years of geological formation and erosion on Earth speak volumes about its active history and evolution of life which was significantly influenced by such impactful events.

Sediments are defined as solid fragments of inorganic or organic material. The bulk of sediment is formed from the weathering of rock, wherein the rock is broken into smaller and smaller pieces by a variety of chemical and mechanical processes, including acidic rainfall, freeze/thaw cycles, and the actions of organisms.

So I believe the answer is right let me know

there are woods and hills and such, there could also be more water to cross

Answer:

The Mississippi River and its alluvial plain houses a rich fauna and flora that make up the largest marsh system in the North American continent, therefore, the settler must cross this system in order to settle.

Explanation:

The marshes are wet-type ecosystems with the presence of water, as well as a low and superficial vegetation that covers all the water but does not dry it. This system is usually found in regions near the sea.

The marshes, depending on the depth of the terrain, can become navigable. They are able to trap and bind sediments, so they act as a filter for pollution. They constitute a habitat for animals, especially migratory birds that use the marshes as a place to rest and feed during their long trips.

2. God. Aton is the name of the disk of the sun, which is related to the god Ra.

Hope it helped,

BioTeacher101

The fossil record indicates the age of the Earth, extinction of organisms, and occurrence of mass extinctions.

The fossil record indicates:

These statements are supported by the fossil record, which is a collection of preserved remains or traces of past organisms. By studying fossils, scientists can learn about the history of life on Earth and how it has changed over time.

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False because when you exercise you make you'r body work harder when if you didn't exercise you'r body wouldn't work as hard hence you would live longer hence you would look younger!

Answer:

its true

Explanation:

The moment magnitude scale is a scale that rates earthquakes by estimating the total energy released by an earthquake . Estimating the total amount of energy released, enables comparison of earthquakes more accurately.

This scale can be used to rate earthquakes of all sizes, near or far. The following statements describe the moment magnitude scale:

B. It collects data using a seismograph.

D. It estimates the total energy released from an earthquake.

E. It determines the amount of damage caused by an earthquake.

QUESTION-

 Which is not true about most large optical telescopes?

OPTIONS-

A. They have greater light-gathering power.

B. They are refracting telescopes.

C. They are reflecting telescopes.

D. They have greater resolving power.

ANSWER-

B. They are refracting telescopes.

Answer: B

Explanation: They are retracting telescopes.

The composition and structure of Earth's layers vary as we go deeper. Starting from the thin crust made of silicate rocks, we move to the mantle with increasing density, and finally to the iron-rich, differentiated core with both solid and liquid parts.

The composition and structure of Earth's layers change as one goes deeper into the Earth. The layers include the crust, the mantle, and the core.

The Earth's outermost crust is a thin layer, no more than a few kilometers deep. It is predominantly composed of silicate rocks. Beneath the crust is the mantle, which can deform and flow slowly. The mantle's density increases from about 3.5 g/cm³ to more than 5 g/cm³ as one goes deeper, due to the compression produced by the weight of overlying material. The mantle comprises of upper and lower portions, with different compositions and physical behaviors.

Beyond the mantle is Earth's core, divided into an outer and inner core. The outer core, which is liquid, and the inner core, which is solid, largely consist of iron. However, other elements like nickel and sulfur are also present. Overall, studying the Earth's interior is challenging, and much of what we know comes from indirect evidence, like the study of seismic waves from earthquakes.

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Answer:

Environmental Influence:

Administrative Circumstances and Management Policies

Commercial Circumstances

Ancient Circumstances

Explanation:

Temperature and rain are the two main important climatic factors. Regions of great attitude own low population because of very low temperatures encountered. Solid forests are sparsely populated. It is challenging to contract a transmission line in such regions. Excellent seepage areas pull settlement and therefore have the high populated areas. Muddy places and regions with periodically sloughs are normally unsettled. Past effects may also be effective for low population quantities in some areas. Financial development rising from exercises such as the exploitation of native resources lure a large group of job-seekers and assistance providers.

Population density varies due to factors such as economic opportunities, climate, geography, and infrastructure. Areas with fertile land, water sources, and favorable climate attract more people. In contrast, harsh environments or lack of resources lead to lower population densities.

Population is denser in areas with economic opportunities due to the availability of jobs and better living standards. Cities and urban areas tend to attract more people because of industrialization and services.

Climate and geography play a crucial role. Regions with a temperate climate and fertile soil can support agriculture and sustain larger populations. River valleys and coastal plains are examples of such areas.

Infrastructure is another important factor. Well-developed transportation, healthcare, and educational facilities make an area more attractive. Areas lacking good infrastructure typically have lower population densities.

Lastly, political stability and security also influence population distribution. People tend to migrate away from conflict zones to safer, more stable regions.