What name is given to that part of the earth in which living organism exist (or which supports life)?

The correct answer is Atmosphere
The atmosphere surrounds us and is necessary for our survival. It comprises atmosphere is 78% nitrogen, 21% oxygen, Question 0 |||9% argon, and Question 0 |||03% carbon dioxide with tiny percentages of other elements. Our atmosphere also contains water vapor. In addition, Earth's atmosphere contains traces of dust particles, pollen, plant grains and other solid particles.