Which layer of the atmosphere is the most vital for supporting life on earth?

a. troposphere
b. stratosphere
c. mesosphere
d. thermosphere

it is the troposphere because it supports the majority of the life on earth

The correct answer is a. troposphere.

The lowest layer of Earth's atmosphere is the troposphere. It extends up to 10 km above the sea level. It consists of about 75% mass of the atmosphere and 99 % of the mass of water vapors. Most of the clouds and all weather conditions are exist in the troposphere. Thus, troposphere is suitable for the existence of the life forms.

answer; the above statement is false; ///

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.