The correct option is OXYGEN.
The biogeochemical cycle refers to the pathway by which a chemical element is moved through both the abiotic and biotic compartment of an ecosystem. Each element has its own cycle through which it is recycled.
Marine organisms in the biosphere usually create carbonated shells which are rich in oxygen, when these organisms die they serve as a source of molecular oxygen.
Womens were discriminated based on their gender. The perspective to womens back then is very low resulting in not being able to vote. They are viewd as "low" and should always be dominated by the male.
Answer:
3x + (2x + 4) is equivalent to (3x + 2x) + 4
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A brainliest is always appreciated.
Explanation:
<span> What substance was responsible for a major ozone depletion in the 1900s? </span>
<span>In the 1920s, CFCs were invented and widely used because they were not too expensive, and were inflammable. By the 1990s, they were banned because they depleted ozone, and the only place Nature could destroy them was the intense solar radiation in the ozone layer. </span>
