9. Why is our environment changing?
10. What are the components of the lithosphere?
11. Give an account of atmosphere.
12. What is the lithosphere? What is the significance of the lithosphere in human life?
13. Give an account of various domains of the environment.
Answers
Answer:
9. Our environment is changing due to the increase in the temperature ( global warning) caused by human activities , such as pollution . This change can be very harmful for us , and still it is. This lead to the imbalance in ecosystem .
10. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth's structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below. Although the rocks of the lithosphere are still considered elastic, they are not viscous.
11. Atmosphere is the thin layer of air that surrounds the earth. It is made up of various gases such as oxygen, nitrogen, carbon dioxides, dust particles and water vapour. The gravitational force of the earth holds the atmosphere around it. It protects us from harmful rays and scorching heat of the sun.
12. The lithosphere is the coolest and most rigid part of the Earth. It is the lithosphere that gives us geography, oceans, weather and the substrate for organic life. It is the source of all accessible mineral resources for human use.
13. There are four domains of the environment that are lithosphere, the hydrosphere, the atmosphere, and biosphere.
Lithosphere: The solid part of the earth which consists of landforms such as plateaus, mountains, plains and valleys. ...
Atmosphere: Thin layer of air surrounding the earth is considered an atmosphere.