Advertisements
Advertisements
Question
Give reasons for the following
Man’s habitat is the biosphere and not the lithosphere in the true sense.
Solution
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.
APPEARS IN
RELATED QUESTIONS
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
Write True or False. Rewrite the false statement correctly :
Sedimentary rocks are formed by the cooling and solidification of molten rock called magma
Classify the following rocks by selecting the correct option given below:
granite
What are metamorphic rocks?
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?
State the types of rocks for the formation of which the following process is involved.
Formation of large crystals, coarse texture and slow cooling and compaction.
Distinguish between rocks and minerals.
What is metamorphism?
How are chemically-formed sedimentary rocks formed? Give examples.
Classify the following rock: Rock salt
Classify the following rock: Limestone
Fill in the blanks
______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Fossils are found in.
Lava comes out from a volcano.
Intrusive Igneous rocks are also called ______ rocks.
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 |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
