Question

Life on earth exists because earth has:

• A. Geosphere
• B. Hydrosphere
• C. Atmosphere
• D. All of the above

Answer 1

The correct option is D All of the above

Life on earth exists because the earth has air, water and land. The layer of air that protects earth from harmful radiations is known as 'atmosphere'. Water is present on earth as ocean water and fresh water. Some amount of water is also present as ground water. All the water present on earth constitutes 'hydrosphere'. Life on earth exists because of soil which constitutes 'geosphere'. When all the three things are present, life exists.