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प्रश्न
Why fossils are preserved in Sedimentary and not in Igneous rocks?
उत्तर
Fossils are remains of vegetation and animals buried under the sediments. The sedimentary rocks are stratified rocks and are found in layers. These fossils are preserved in between these layers. But in Igneous rocks, the fossils are destroyed due to high temperature of lava.
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संबंधित प्रश्न
Fill in the blank
A category of rock which is formed by the alteration of the parent rock due to heat and pressure is called: ______________.
What is crust?
Classify the following rocks by selecting the correct option given below:
coal
Classify the following rocks by selecting the correct option given below:
gypsum
Why are the igneous rocks also called the primary rocks?
Name the three stages of lithification of Sedimentary rocks.
How are sedimentary rocks classified on the basis of their formation?
In what type of rocks do you find fossils and why?
What physical agents are involved in the sedimentary rocks?
Classify the following rock: Coal
Classify the following rock: Dolomite
Classify the following rock: Loess
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
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:
Type of metamorphism in which changes are caused due to high pressure.
Lava comes out from a volcano.
Out of 2,000 different types, only ______ are the basic minerals commonly found all over the earth.
Explain the different types 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.
