General Knowledge Questions

Which among the following countries of South America does the Tropic of Capricorn not pass through?

Which gas in the atmosphere is essential for respiration?

A pure market economy is sometimes called pure

The summer capital of J&K Government is

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.

The multinational maritime exercise AMAN-19 was conducted in which country?

When the diaphragm and external intercostal muscles contract,

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.

What is crude mineral oil?