Oxygen because we need it to breath if that’s the wrong anwser sorry but it should be right
C) DNA
Inside the nucleus, DNA and proteins together form chromosomes.
Answer: Most common diseases are a result of both your genes and your environment. Your environment can include personal choices, such as what foods you eat and how much you exercise, and external factors, such as stress, clean water, and air quality.
Explanation:
To have a great ambition or ultimate goal; desire strongly
During nitrogen fixation, bacteria breaks nitrogen gasses down into a usable form for plants.
