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प्रश्न
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
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उत्तर
Basic igneous rock contain a low percentage of silica and a high percentage of basic oxides.
संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
Fill in the blank
Granite is an example of intrusive ________ rocks.
How are rocks different from minerals?
How are igneous rocks formed?
How are sedimentary rocks formed?
State two characteristics of Basic Igneous Rocks.
Name the types Sedimentary rocks based on agents of formation.
Distinguish between the following:
Acid Igneous Rocks and Basic Igneous Rocks.
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.
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.
Classify the following rock: Rock salt
Classify the following rock: Schist
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Give one word for the following.
The core of the earth occupied by rock in iron and nickel.
Give one word for the following.
Igneous rocks, which contain a high percentage of silica.
Why are the Igneous Rocks called Primary Rocks?
Volcanic mountains are covered with sedimentary rocks.
What is thermal metamorphism?
Mention some uses of rocks.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
