21
Which characteristic of rocks tends to increase as the rocks are metamorphosed?
Answer: density
Questions
22
Igneous, sedimentary, and metamorphic rocks are usually composed of
Answer: minerals
24
Which of the following statements regarding the Deccan Trap is/are correct?
1. Intense volcanic activity in the form of fissure eruption took place towards the end of Cretaceous period 2. The volcanic lava spread out in horizontal sheets 3. The regur soil found here is rich in nitrogen
Select the correct answer using the code given below:Answer: 1 and 2 only
25
The Damuda series of Gondwana system has three stages, namely, Raniganj, Barren Rocks and Barakar. The middle stage is called Barren because
Answer: it is a sedimentary layer consisting of shale and clay
29
Which of the following is known when the rock is remove layer by layer due to weathering?
Answer: exfolation
30
Which is the principle cause of exposure of rock to the changes of temperature?
Answer: Chemical weathering
31
Which of the following is an example of potholes in river beds?
Answer: corrosion
32
How the soil erosion can be prevented?
Answer: Growing plants on a large-scale
33
Which of the following condition is most ideal for chemical weathering?
Answer: hot and humid
34
Which process in known as chemical weathering process?
Answer: Oxidation and Reduction
35
What the molten rock is known when it stay under the surface of earth?
Answer: Magma
