Whales originated from terrestrial ancestors and over millions of years, underwent significant evolutionary changes to transition from land to water habitats. The adaptions included changes in limb structure, development of blubber, and moving the position of nostrils to become a blowhole.
Explanation:The ancestors of whales underwent a significant transition in habitat from land to water. Their evolution is a fascinating journey that started about 50 million years ago with a four-legged, land-dwelling mammal, now known as Pakicetus. Over time, through a process called natural selection, these ancestors of whales made gradual physical and behavioral changes adapting to life in water. This included changes in their limb structures to become fins and tails for swimming, development of blubber for insulation in water, and shift from nostrils to a blowhole for breathing on top of the head. This major transition was a complex process that took millions of years and offers unique insights into evolution and adaptation.
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Which of the following farming techniques is considered better for the environment?
Swidden agriculture
Slash and burn agriculture
Wet rice agriculture
Dry rice agriculture
Wet rice agriculture: farming techniques are considered better for the environment. Thus, option C is the correct option.
What are the advantages of wet rice cultivation?Growing rice in submerged soils has several benefits, such as better availability of major, secondary, and specific micronutrients, overall improvement in chemical fertility, and preferred buildup of organic matter. These soil fertility benefits enhance the long-term management of soil fertility and sustainability of wetland rice systems. The research highlights the possibilities for wetland rice cultivation in monsoon Asia, particularly in locations with poor drainage, a high risk of waterlogging, and a low water table (within 30 cm of the soil surface).
Rice production under moisture regimes that conserve water while boosting yield obviously has a lot of potentials. In such a case, it is possible to objectively assess the fertility advantages of submerged rice cropping systems in order to aid make an informed decision for growing of rice in future.
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The inner edge of a meander where sediment is deposited is a(n)
The inner edge of a meander where sediment is deposited is a(n) point bar.
Explanation:The inner edge of a meander where sediment is deposited is called a "point bar." A point bar is a landform feature found on the inside curve of a meandering river or stream. As the water flows around the bend of the meander, its velocity decreases on the inner side, causing it to drop sediment it has been carrying.
Over time, these deposited sediments accumulate and create a gently sloping, often sandy or gravelly area known as the point bar. Point bars are important in river and stream ecosystems as they can provide habitat for various plant and animal species.
Therefore, the term used to describe the inner edge of a meander where sediment is deposited is a "point bar."
The hawaiian islands are located where the pacific plate is:
Answer:
The hawaiian islands are located where the pacific plate is: MOVING OVER A HOT SPOT OR MANTLE PLUME.
Explanation:
The Hawaiian islands are islands that were formed due to the rise of heat in the deep region of the Earth's mantle. The rise of the heat caused the production of magma which forced its way through the Earth's crust and solidified thereby resulting in the formation of the Hawaiian Islands.
The Hawaiian Islands are located where an oceanic tectonic plate which is found beneath the Pacific Ocean also known as the Pacific plate is moving over a hot spot or mantle plume.
The Serengeti National Park is a popular game reserve in __________.
A. South Africa
B. Uganda
C. Mozambique
D. Tanzania
Answer: Your answer maybe be D.Tanzania
Explanation:
I HOPE THIS HELPS IF NOT THEN SORRY
:)
Answer:
Its D
Explanation:
Victoria Falls is located in Vicoria Lake is found between wich of the three following contries?
the convection currents responsible for moving tectonic plates occur in which earth layer?
The convection currents responsible for moving tectonic plates occur in the Mantle layer of the Earth.
Further Explanations:
Mantle is a layer of the Earth that is bounded by crust on the top and core from the bottom. Mantle is generally made up of rocks and is a massive layer of planetary body characterized by different densities. All the planets, asteroids and planetary moon comprises of mantle.
The Earth's mantle is a silicate rock layer with a thickness of about 2,900 Km which in term is 84% of the earth's volume. It is solid in-state but in geological times it was supposed to be a viscous fluid. Its partial melting led to the evolution of Oceanic crust and other partial melting led to the evolution of continental crust.
The mantle is also characterized by the convection current that carries heat from the mantle to the planet's surface. These currents led to the accumulation of mantle on the planets crust that get added to the edges of the plate associated with the seafloor.
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2. the state that has the longest border equals what percent of the country's total border length?https://brainly.com/question/8775025
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Answer Details-
Grade: High School
Subject: Geography
Chapter:Convention current
Keywords:Mantle, planetary body, densities, planets, asteroids, planetary moon, silicate rock, viscous fluid, Oceanic crust, continental crust.
A material that undergoes tensional stress tends to
it stretches because it does
How does burning fossil fuels contribute to global warming?
How does evaporation make water denser?
It increases the salinity
What impact does poverty have on individuals, society, and both local and international governments? Be sure to include at least two examples.
To what does the term "Outback" refer?
Question 11 options:
urban areas unsuitable for farming
remote, arid areas
suburban wilderness
coastal plains areas
The term "Outback" refer to remote, arid areas
Outback refer to remote and desolate areas that are too arid for growing crops. In Australia, certain areas that are very remote from urban areas where water bodies are scattered and usually dry are called outback. Such areas include the arid region of the Western Plateau and its semiarid northern plain to the semiarid inland regions of eastern Australia.
The right answer is remote, arid areas.
The term "Outback" refers to the remote, arid areas of central Australia. This vast region, extending west from the Great Dividing Range, is characterized by deserts and semiarid plateaus with rough grasses and scrublands. It is known for its grazing lands, mining, and aboriginal communities. These areas are distinct due to their rugged environment and limited rainfall.It is sparsely populated, home to many aboriginal groups, and known for its extensive grazing lands for cattle and sheep, mineral resources, and unique, rugged environment.On which day of the year does the sun reach the greatest altitude at solar noon in newyork city
Why was the discovery of marine magnetic anomalies so important to the theory of seafloor spreading?
In painting what line and value weights tend to suggest motion
Which factors enabled Europe to colonize foreign territories? Choose all that apply.
advanced technology
military strength
NATO
political power
the European Union
Advanced technology , military strength , and political power factors enabled Europe to colonize foreign territories.
Explanation:Advanced weaponry, advanced soldiers, and better systems for navigation and transportation allowing them to get the different places like America with much more ease.
Europeans used different tactics during the colonial era as a quest to exploit their colonies. Their motivation was political and economic driven. Therefore, they used ships as transportation to sail to different shores and establish colonies.
The military was deployed in battles to force the natives to give up their rights to land or force natives to land much less profitable to colonizers. They also used weapons that were not recognized in many places like Africa during their settlement. This includes mechanized chlorine gas, machine guns, etc.
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Compare the type of agriculture practiced in the Eastern United States and the type of agriculture practiced in Northern Africa. Discuss the factors that influence agricultural practices in each region.
The type of agriculture practiced in the Eastern United States is commercial farming, while Northern Africa mainly practices subsistence farming. Factors influencing agricultural practices in each region include factors like water resources, climate, soil quality, technology, and economy.
Explanation:The type of agriculture practiced in the Eastern United States differs from the type practiced in Northern Africa in several ways. In the Eastern United States, the predominant form of agriculture is commercial farming, which involves large-scale production of crops or livestock for sale. This is due to factors such as fertile soil, a temperate climate, advanced technology, and a market-oriented economy. On the other hand, Northern Africa mainly practices subsistence farming, where individuals grow their own food using simple tools and techniques.
The factors that influence agricultural practices in each region vary. In the Eastern United States, factors such as the availability of abundant water resources, access to modern machinery and technology, fertile soil, and a market-oriented economy drive the adoption of commercial farming practices. In contrast, Northern Africa faces challenges such as arid and semiarid climates, limited water resources, poor soil quality, lack of advanced agricultural technology, and economic constraints, which make subsistence farming more viable.
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What might farmers start growing due to dire economic circumstances?
1.) Soybeans
2.) Poppies
3.) Rice
4.) Wheat
2.) Poppies
A poppy is a herbaceous, flowering plant. One species of poppy is the source of opium containing medicinal alkaloids such as morphine, used as an analgesic and narcotic medicinal and recreational drug. The poppy seeds are also edible.
Farmers might start growing due to dire economic circumstances 2.) poppies.
Explanation:Poppies are famously known as breadseed poppy and opium poppy are farmed and cultivated for three purposes. The poppy seeds are edible; consumed by human beings; and it is also useful for pharmaceutical purposes. Furthermore, it produces alkaloids called oripavine and thebaine, used in pharmaceuticals to make drugs such as oxycodone and hydrocodone.
In some countries, farming poppies without a license is deemed as a criminal offence. There are also some strict regulations regarding access to the poppies plantations such as the prohibition of access unless accompanied by the licence holder. Also, one can report people to police if there is non-compliance.
What is the difference between extrusive and intrusive igneous rocks?
Answer:
Intrusive igneous rocks are formed below the Earth's surface by cooling and solidification of magma to form a large size crystal.
Extrusive igneous rocks are formed on the Earth's surface when the lava cools very rapidly to form a small size crystal.
Explanation:
difference between extrusive and intrusive igneous rocks
Intrusive igneous rocks
Intrusive igneous rocks are formed inside the Earth surfaceThey are dark in colorThey cool very slowlygrains size are largerCrystals size are largerExtrusive igneous rocks
Extrusive igneous rocks are formed on the Earth's surface.They are light in color.They cool very quickly.grains size are smaller.crystals size are smallerIntrusive igneous rocks are formed below the Earth's surface by cooling and solidification of magma to form a large size crystal.
Extrusive igneous rocks are formed on the Earth's surface when the lava cools very rapidly to form a small size crystal.
The two main subgroups of igneous rocks are extrusive and intrusive rocks. Extrusive rocks on Earth are created by lava or subsurface magma that has come to the surface. Magma that solidifies as it cools within the planet's crust gives rise to intrusive rocks.
Large crystals make up intrusive rocks, but the crystals in extrusive rocks are so small that they can only be seen under a microscope. Granite represents the best illustration of an intrusive rock, whereas basalt is a good illustration of an extrusive rock.
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You are dropped off by helicopter at a site on the land. you are told that it is a plate boundary. almost immediately, you feel an earthquake. you look around and note the absence of volcanoes, but you notice an offset stream channel, and find a vertical fault with two kinds of rock on either side of it. what sort of plate boundary are you most likely on?
How does Europe compare in size to the other continents of the world?
A) It is the second smallest continent.
B) It is the largest continent.
C) It is the smallest continent.
D) It is the second largest continent.
Answer:
A) It is the second smallest continent.
Explanation:
Europe is the second smallest continent, with an area of 3,937,083 square miles.
Some scientists theorize that global warming __.
A. Will eventually result in colder temperatures at the North and South poles
B. Is the result of increased levels of carbon dioxide in the atmosphere
C. Is caused by melting glaciers
D. Will result in a sharp drop in ocean levels
Answer:
is the result of increased levels of carbon dioxide in the atmosphere.
Explanation:
Deciding where agriculture is produced and what products are cultivated is most dependent on __________.
In 1956, President Nasser created an international crisis when he _____.
the most important reason why most farmers in northeast china grow crops other than wet rice is
The model shows global air circulation. Identify the wind directions that are correct
The answer is A, C, E and F. The winds at 4 are SE trade winds and should blow from the south-east towards the same direction as 3. The winds at 2 are called Westerlies and should blow from west to east.
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Write a three-paragraph letter in English, and compare the culture of Burundi and American culture, especially in terms of foods, sports, transportation, population, and demographics. How is your culture similar to that of Burundi’s? How is it different? Use a lot of details.
The distance wind travels across open ocean water is called
The distance wind travels across open ocean water is called Fetch. The fetch is the separation from the shore that is upwind, or more broadly, the area across which the wind blows.
What is the fetch of a wind wave?The length of water that the wind can freely cross without being blocked in one direction is known as the wind fetch. Because longer fetch can lead to greater wind-generated waves, fetch is a crucial open sea characteristic. As a result, the bigger waves may accelerate the erosion and resuspension of the beach.
Fetch is the term for the region of an ocean or lake's surface where the wind generally blows in a single direction, creating waves. The phrase is also used to refer to fetch length, which is the horizontal distance that winds that produce waves blow over.
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please helppp :(
If it is noon Pacific Time in the summer, what time is it in Boston?
9 a.m.
10 a.m.
2 p.m.
3 p.m.
The correct answer is - 3 p.m.
The Pacific Time Zone is a time zone that observes standard time by subtracting eight hours from the Coordinated Universal Time. This time zone is used in the westernmost parts of the USA, Canada and Mexico. The city of Boston is located on the total opposite side of the USA, on the eastern coast. The difference between Boston and the any place of the Pacific Time Zone is standardized to ahead hours, or better said Boston is three hours ahead since its time is counted by subtracting five hours from the Coordinated Universal Time, so it comes that when it's noon Pacific Time in Boston it is 3 p.m.
The picture below shows the surface weather model at a particular location.
What type of weather is most likely expected at the location?
snowfall
hurricane
rain shower
thunderstorm
Answer:
Rain shower
Explanation:
The symbol with the circle and triangle means rain shower.
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What is the relationship between the crust and the lithosphere? what is the relationship between the crust and the lithosphere? the lithosphere is part of the crust. the crust is a special type of lithosphere. the crust is part of the lithosphere. the lithosphere is a special type of crust?
The crust is part of the lithosphere. Lithosphere comprises the crust and the upper-most mantle, and is subdivided into tectonic plates that move on the semi-fluid asthenosphere.
Explanation:The Earth's crust and the lithosphere have a specific relationship. The lithosphere encompasses parts of the Earth's shell which includes the crust and part of the upper mantle. Hence, the crust is part of the lithosphere, not the other way round. By definition, the crust refers to the outermost layer of the Earth while the lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite that is defined by its rigid mechanical properties. The lithosphere is subdivided into tectonic plates and these plates move on the semi-fluid asthenosphere below.
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The lithosphere incorporates the Earth's crust and upper mantle, with the crust being part of the lithosphere, essential for plate tectonics and geological processes.
The relationship between the crust and the lithosphere is that the lithosphere includes the Earth's crust and the upper part of the mantle, making the crust part of the lithosphere.
The lithosphere, consisting of the rigid outermost shell, encompasses both oceanic and continental crust and operates as the outer, rigid part of the Earth.
Understanding this relationship is crucial in grasping concepts like plate tectonics, where the movements of lithospheric plates impact Earth's geological processes.