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प्रश्न
Give reasons for the following
Man’s habitat is the biosphere and not the lithosphere in the true sense.
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उत्तर
The composite zone inhabited by most living creatures is called biosphere. It includes a part of the atmosphere, the hydrosphere and a part of the lithosphere. All three layers are essential for life to exist.
As lithosphere is only a small part of the biosphere, therefore, man’s habitat is the biosphere and not the lithosphere in the true sense.
संबंधित प्रश्न
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
Classify the following rocks by selecting the correct option given below:
granite
The photograph shows you a type of rock that is widely used in the construction industry.
- Name the type of rock.
- How is it formed?
Describe the process that leads to exfoliation.
What is Geology?
Which agents are responsible for deposition of sediments?
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
Fill in the blanks
______ rocks are formed by the deposition of shells and skeletons of organism.
What is the basis for the classification of rocks?
Give one term for the following statement:
Formed when mud layers compacted under great pressure composing 80% of this rock.
Give an example of a Plutonic rock.
How are igneous rocks formed?
What are metamorphic rocks?
Which Soils are formed by the weathering of metamorphic rocks?
The word Ignis means rock.
What is thermal metamorphism?
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
