Monohar Pandey Solutions for Exercise 2: Exercise 2

'Mons Scale' is used to indicate the

Consider the following statements
1. Acid igneous rocks such as granite, are less dense and are light in colour than basic rocks.
2. Granite is a plutonic rock.
3. Granite is a common volcanic or extrusive rock and forms lava flows, lava sheets and lava plateaux.
4. Granite are the basic igneous rocks.
Which of the statements given above is/are correct?

Earth has concentric layers of heteroous composition.
Choose corgenerect statements regarding its structure.
1. It comprises three distinct layers.
2. Barysphere is the inner-most layer.
3. Mesosphere (Mantle) is made of primarily mineral olivine.
4. Sima is part of continental crust.
Select the correct answer using the codes given below

In which one of the following areas would a radial drainage generally develop?

Among the following sedimentary rocks, which one is of organic origin?

Which of the following is the correct order of elements of earth's crust in decreasing order of their percentage?

Assertion (A) Because of the Sun's UV radiation, Earth's upper atmosphere is partly (0.1% or less) ionised plasma at altitudes of 70-1500 km.
Reason (R) This region, ionosphere, is coupled to both the magnetosphere and the neutral atmosphere.
Codes

Rocks resulting from the crystallisation of magma are