Answer:
A. Nitrogen is the most abundant
.
B. Oxygen is the most plentiful gas about 21% by volume.
Explanation:
Nitrogen is the most abundant gas present in the atmosphere about 78 % by volume while the second most abundant gas is oxygen which is about 21 % in the atmosphere which is used by the living organism for breathing and energy production. Nitrogen is used by the plants for the production of amino acids and enzymes formation. Carbon-dioxide is present in a very low amount about 0.03 % in the atmosphere which is used by the plants during photosynthesis process.
Answer:
The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification.
True rainforests cover less than 2 percent of the earths total surface
Damage in the bone marrow, called as aplastic anemia leads to lower production of both red and white blood cells, causing oxysgen starvation and infection.
Platelets are also reduced.
