ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They move into and out of living systems.
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They are only found in abiotic factors.
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They move out of living systems and do not return.
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They move into living systems and remain there.
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Detailed explanation-1: -Answer. In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen? They move into and out of living systems.
Detailed explanation-2: -In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen? * They move into and out of living systems.
Detailed explanation-3: -Energy flows through an ecosystem and is dissipated as heat, but chemical elements are recycled. The ways in which an element-or compound such as water-moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle.
Detailed explanation-4: -The six most common elements of life on Earth (including more than 97% of the mass of a human body) are carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus.