Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Energy do ecosystems absorb on the earth.

Answer: What do ecosystems absorb on the earth?


Question: Cell -> tissue -> organ -> organ system sequence represents the correct levels of organization for multicellular organisms.

Answer: Which sequence represents the correct levels of organization for multicellular organisms?


Question: When an atom gains or loses an electron it becames a(n) ion.

Answer:
When an atom gains or loses an electron it becames an?