Which of these statements is true of ecosystems? a animals do not travel from one ecosystem to another ecosystem b the total amo
unt of energy in an ecosystem does not change c air cannot be used by organisms once the air moves out of the ecosystems d matter lost by one ecosystem is gained by the surrounding environment
I think the answer is B. I think energy decreases as it moves up tropic levels when it is lost as the organisms from one level consume the organisms in the other.
Explanation:
It can't be A because animals do travel from one ecosystem to another. It's migration. It's not C because air can be used by organisms as once as the air moves out of their ecosystem because air is everywhere and the organisms need air to breathe and to live. D is definitely incorrect because matter can't be created or destroyed. Remember that an ecosystem is the organisms physical environment. I hope this answers your question.
Lithosphere is the solid outer part of the earth which includes the brittle upper portion of the crust and the mantle. It is bounded by the asthenosphere below and the atmosphere above.
<em><u>The pressure in the lithosphere is about 109 gigapascals or GPa. </u></em>
<em><u>Asthenosphere has a pressure of about 18 GPa</u></em>
<em><u>The mantle is a layer between the outer core and the crust, it has a pressure of about 149 GPa.</u></em>
