Consider the following statements:
1. Igneous rocks are primary rocks that are formed when magma cools and solidifies.
2. Granite is a type of igneous rock.
Which of the statements given above is/are correct?
1 only
2 only
Both 1 and 2
Neither 1 nor 2
As igneous rocks form out of magma and lava from the interior of the earth, they are known as primary rocks. The igneous rocks are formed when magma cools and solidifies.
When magma, in its upward movement, cools and turns into solid form, it is called igneous rock. The process of cooling and solidification can happen in the earth’s crust or on the surface of the earth.
Igneous rocks are classified based on texture. Texture depends upon size and arrangement of grains or other physical conditions of the materials. If molten material is cooled slowly at great depths, mineral grains may be very large. Sudden cooling (at the surface) results in small and smooth grains. Intermediate conditions of cooling would result in intermediate sizes of grains making up
Granite, gabbro, pegmatite, basalt, volcanic breccia and tuff are some of the examples of igneous rocks.
A spherical balloon of radius r subtends angle 60° at the eye of an observer. If the angle of elevation of its centre is 60° and h is the height of the centre of the balloon, then which one of the following is correct?
Miscellaneous · Easy
The main source of energy in Sun is :
Miscellaneous · Easy
Match the underlined word in each of the sentences with the correct parts of speech and indicate your response on the answer sheet accordingly. Oh no! I am getting late for the function.
Miscellaneous · Easy
The first and sixth sentences are given as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly S1: Our Constitution makers were fully conscious of the fact that the Scheduled Castes and Scheduled Tribes had been oppressed and underprivileged sections of our society over the centuries and they deserved a special dispensation so that their condition may be vastly improved. P: Similarly, they were also sensitive of the difficulties and problems which were likely to be faced by the persons belonging to the Anglo-Indian community in the country. Q: One such provision related to the reservation of seats for these communities in the Lok Sabha and State Legislative Assemblies. R: This provision found place in Article 330 and Article 332 of the Constitution. S: For this purpose, several special provisions were incorporated in our Constitution. S6: Consequently, adequate safeguards were provided for these communities in our Constitution. The correct sequence should be:
Miscellaneous · Easy