To protect the cell from the invasions of bacteria and viruses.
I believe the best answer is A.
People are more afraid in fossil fuels running out rather than the other reasons that don't really affect the people today. Hope it helped!!!
The answer is D.) magnetosphere.
The emission of N2O from the landfill site is called denitrification and it is caused by the action of denitrifying bacteria.
<h3>What is dissolved oxygen?</h3>
The term dissolved oxygen refers to the amount of oxygen that is present in a water body. Now, we know that the addition of organic matter into water requires oxygen to break it own thus the dissolved oxygen content will go down in response to the added organic load.
The process that leads to the emission of N2O from the landfill site is called denitrification and it is caused by the action of denitrifying bacteria.
Learn more about denitrification:brainly.com/question/13624886?
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