Answer:
If many people buy plastic products, these products will still be around 100 years from now, piled in landfills or other storage sites.
Explanation:
I believe it's A, but I could be wrong. I apologize if I am so. I will do further research and get back to you
The hormone calcitonin is controlled by a negative feedback mechanism because it's release leads to the decrease of calcium blood levels.
<h3>What is negative feedback mechanism?</h3>
A negative feedback mechanism is the defined as a type of regulatory mechanism in the body where by the increased output of a system leads to a decrease of another system.
Therefore, the release of the hormone calcitonin (increased level of calcitonin in the blood) will lead to decrease in blood levels of calcium.
Learn more about hormones here:
brainly.com/question/8162998
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Answer: nitrates
Explanation:
Nitrogen fixation involves the conversion of atmospheric nitrogen into ammonia and organic derivatives, by natural means, especially such conversion, by microorganisms (nitrogen fixing bacteria) in the soil, into a form that can be assimilated by plants.
The easily accessible form by which nitrogen can be obtained by plants is nitrates, as they are very soluble in soil water and easily picked by plant root vessels
