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प्रश्न
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
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उत्तर
SIMA
संबंधित प्रश्न
Fill in the blank
Granite is an example of intrusive ________ rocks.
Write True or False. Rewrite the false statement correctly :
Minerals are organic substances.
Which agents are responsible for deposition of sediments?
State the types of rocks for the formation of which the following process is involved.
Solidification of magma on the surface of the earth.
State the types of rocks for the formation of which the following process is involved.
Accumulation takes place over long periods of time in seas, lakes and streams.
What is meant by a rock?
Give one word for the following.
A sedimentary rock, which is composed of microscopically fine, soft and smooth particles.
Give one word for the following.
The best example of chemically-formed sedimentary rock, which has been formed by the evaporation of water from solution containing minerals.
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Give one term for the following statement:
Igneous rocks of deep seated origin.
Give one term for the following statement:
Fine grained metamorphic rock, generally produced by the low grade metamorphism of shale.
How is Plutonic rock formed?
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
Volcanic mountains are covered with sedimentary rocks.
What are metamorphic rocks?
______ into slate caused by thermal metamorphism.
Oldest Sedimentary rocks of the world has been identified in Green land.
______ are chemical substances which exist in nature.
