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.

From where does mineral oil originate?

Gravitational force is maximum at which place

Which country recently unveiled the world's first underground hotel?

What is the state of the processor, when a process is waiting for some event to occur?

Whose part is the International Bureau of Education

India has donated what amount for a peacekeeping initiative at the UN?

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which bestexpresses the same sentence in Indirect/Direct speech.

The doctor said, "well, what can I do for you?"

What is the function of reverse transcriptase?