Questions

In which of the following countries India celebrated a cultural festival named ‘India by the Nile’ in 2017?

In November 2017, Indian Government launched ‘UMANG’ mobile app. What does ‘G’ stand for in ‘UMANG’?

Who took over as the new chairman of the Tata Sons owned Vistara Airline in 2016? Prior to this, he was the Managing Director of Titan for a long time.

United Progressive Alliance was founded in?

In January 2018, the Companies (Amendment) Act, 2017 was notified. Few provisions in the amendment Act have important bearing on the working of the______.

If I is the current through a wire and e is the charge of an electron, then the number of electrons crossing in t seconds will be given by

The quantum theory of light was given by

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