Questions

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

When it rains, it pours

What natural factors contribute to global climate?

Which of the following is not true about tape storage?

What is the difference between microprocessor and micro-controller?

Farming in the early New England colonies was challenging because

The fall of the Czar in Russia is known as _______

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.

From where does mineral oil originate?

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.