Questions

The value of g on the moon is 1/6th of the value of g on the earth. If a man can jump 1.5 m high on the earth, on the moon, be can jump up to a height of

A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Be under no illusions

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

A small piece of burning or glowing coal or wood in a dying fire

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'.

Evolutionary processes give rise to biodiversity in every (1)/ level of biological organisation, including the level of (2)/ species, individual organisms, and molecules.(3)/ No error (4)

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Ignorance is bliss

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.

Sedimentary rocks leads to the formation of oil deposits because

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

A big dictionary ________ ________ the table near the door