Questions

AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through

What is the chemical formula of Ozone?

The most active ingredient in bleaching powder is

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

____________ so long ago, virtually everyone seemed _____________ that a sizeable majority of British voters ____________ reaffirm their faith and confidence in a united Europe. Unfortunately, what was considered to be a remote possibility has actually become a very ____________ reality. A small majority of voters ____________ to take Britain out of the European Union (EU) in the referendum held on June 23.

____________ so long ago,

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.

My friends are going to watch a movie tonight.

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

______ Parliament attack, there are many theories.

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?

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

The offerings were placed on the alter.