Advertisements
Advertisements
Question
Why are the igneous rocks also called the primary rocks?
Advertisements
Solution
The igneous rocks were the first to be formed. They form the basis of formation of other types of rocks. Thus, they are called primary rocks.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
Sedimentary rocks such as limestone change into ___________.
Write True or False. Rewrite the false statement correctly :
Minerals are organic substances.
Classify the following rocks by selecting the correct option given below:
shale
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?
Name any three elements of the earth’s crust.
Name three types of rocks.
Name the three stages of lithification of Sedimentary rocks.
Name the types Sedimentary rocks based on agents of formation.
How are rocks important to us?
Sedimentary rocks are also called stratified rocks. Why?
Classify the following rock: Loess
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Fill in the blanks
______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.
How are sedimentary rocks classified?
Give reasons for the following
Man’s habitat is the biosphere and not the lithosphere in the true sense.
______ into slate caused by thermal metamorphism.
What are the uses of soil?
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.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
