Q.4. Write the answer of the following short questions (any four)
1. What is crust?
2. What do you know about sedimentary rocks?
3. What is atmosphere ? Name the five layers of the atmosphere
4. What are the main features of tribal society ?
Answers
Answer:
1 ans Earth's crust is a thin shell on the outside of Earth, accounting for less than 1% of Earth's volume. It is the top component of the lithosphere, a division of Earth's layers that includes the crust and the upper part of the mantle
2 ans Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place.
3 ans The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. A further region at about 500 km above the Earth's surface is called the exosphere.
4 ans Definite Common Topography: ...
Sense of Unity: ...
Endogamous Group: ...
Common Dialect: ...
Ties of Blood-relationship: ...
Protection Awareness: ...
Distinct Political Organization: ...
Common Culture: