The ocean ecosystem grows due to downwelling currents
A tremendous ecosystem grows along the coast due to downwelling longshore currents because this downwelling longshore currents regulates the bottom region of the ocean. These currents provide oxygen and distributing heat to deeper region of the ocean where majority of aquatic organisms are located. This current also bring nutrients to the surface in order to reduce toxicity of nutrients at the bottom as well as provides nutrients to the surface region.
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Answer:
the answer is the first one A.
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A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains.
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B) X rays do not penetrate Earth's atmosphere
Explanation:
The Chandra X-Ray observatory should operate in space due to the nature of the radiation it is using. X-rays are high energy electromagnetic radiations. The observatory will not be able to function properly since it uses x-ray because, the rays cannot penetrate the earth's atmosphere. A radiation of this type would easily be cut off by the particles in the atmosphere. The observatory has to be positioned outside of the earth.