When oxygen gas is either absent or present in low quantity in the solid, in places like stagnant swamps, the soil is said to be in:
When the burning of coal is done in a limited environment of oxygen, the exhaust produces poisonous gas Carbon dioxide.
Select True(T) or False(F) in the following statements regarding aerobic and anaerobic respiration.
1. Aerobic respiration proceeds in the presence of oxygen. 2. Anaerobic respiration proceeds in the absence of oxygen. 3. In anaerobic respiration end product is water. 4. Aerobic respiration occurs normally throughout life.