Questions

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

Crude mineral oil comes out of the earth as a thick brown or black liquid with a strong smell. It is a complex mixture of many different substances, each with its own individual qualities. Most of them are combinations of hydrogen and carbon in varying proportions. Such hydrocarbons are also found in other forms such as bitumen, asphalt and natural gas. Mineral oil originates from the carcasses of tiny animals and from plants that live in the sea. Over million of years, these dead creatures form large deposits under sea­bed and ocean currents cover them with a blanket of sand and silt. As this material hardens, it becomes sedimentary rock and effectively shuts out the oxygen, thus preventing the complete decomposition of the marine deposits underneath. The layers of sedimentary rocks become thicker, and heavier. Their pressure produces heat, which transforms the tiny carcasses into crude oil in a process that is still going on today.

How does crude oil come out of the earth ?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

His name was hardly (1)/ known out (2)/ his own country. (3)/No Error (4)

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The plane was too(A)/ far away that it was(B)/just a dot in the sky.(C)/No error(D)

In the following question, sentence given with blank to be filled in with an appropriate word(s). Four alternatives are suggested for the question. Choose the correct alternative out of the four and indicate it by selecting the appropriate option.

Her parents will never give their _____ to such an unsuitable match.

The tendon is made up of

Slow-growing large coloured patches on the bark of trees are the examples of symbiotic life forms called ______.

In a centrally planned economy, the ____________ plans all the important activities in the economy.

At the equilibrium price