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प्रश्न
Explain this term associated with rocks: Fossil fuels
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उत्तर
These are the fuels accumulated between two impermeable layers of the sedimentary rocks, e.g. peat, coal and petroleum etc.
संबंधित प्रश्न
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
Differentiate between SIAL and SIMA.
Distinguish between the following:
Plutonic and Volcanic rocks.
How are sedimentary rocks classified on the basis of their formation?
State the chief characteristics of metamorphic rocks.
What is meant by a rock?
Classify the following rock: Gneiss
Classify the following rock: Slate
Give one word for the following.
Igneous rocks, which contain a low percentage of silica.
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
How are sedimentary rocks classified?
Why are the Igneous Rocks called Primary Rocks?
How is Plutonic rock formed?
Give reasons for the following
Rocks are of great economic significance.
How are igneous rocks formed?
______ are chemical substances which exist in nature.
What is lava?
What are the characteristics of Sedimentary rocks?
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
