Question

Which of the following statements are correct?

1. The biosphere includes both living and non-living components.

2. The biosphere is part of the Earth where life exists.

3. The biosphere comprises all ecosystems.

• A. 1 & 2
• B. 2 & 3
• C. 1 & 3
• D. All are correct

Answer 1

Answer:

D. All are correct

• Correct Answer: Option D - All are correct

• The biosphere includes both living and non-living components - This statement is correct. The biosphere encompasses all living organisms (plants, animals, microorganisms) as well as the non-living components that interact with them, such as soil, water, and atmospheric elements that support life.

• The biosphere is part of the Earth where life exists - This statement is correct. The biosphere specifically refers to the regions of Earth's crust, waters, and atmosphere where living organisms exist and can survive. It is the global ecological system that integrates all living beings and their relationships.

• The biosphere comprises all ecosystems - This statement is correct. The biosphere is the sum total of all ecosystems on Earth. It includes all the different biomes and ecosystems, from deep ocean trenches to high mountain tops, from tropical rainforests to polar ice caps.

• The biosphere is often described as a thin layer around the Earth that extends from about 11,000 meters below sea level to about 15,000 meters above sea level where living organisms can be found. It's the zone where life exists and where the lithosphere (solid earth), hydrosphere (water), and atmosphere (air) interact to support life processes.