The antiseptic substance in tears.

Give appropriate biological / technical term.

State any three qualifications required for a candidate to be elected as the Vice-President of India.

State any two provisions of the Rowlatt Act passed by the Government in 1919.

Given below is a diagram depicting a defect of the human eye, study the same and then answer the questions that follow:

1. Name the defect shown in the diagram.
2. What are the two possible reasons that
...

Read the extract given below and answer the questions that follow:

Trotter: It’s true, isn’t it, that Jimmy, the child who died, managed to get a letter posted to you? (He sits at the Right end of...

The electrolyte used for electroplating an article with silver. Identify the substance underlined.

Name the process by which impure ore of aluminum gets purified by using concentrated solution of an alkali.

Briefly explain the following term: Photophosphorylation

Mention two causes of soil erosion in India.

What is soil erosion?

State any one reason why the President is elected indirectly.

1. What are isobars?
2. Give one example of isobars.

One gaseous compound which depletes the ozone layer.

Given below is a representation of a kind of pollution. Study the same and answer the questions that follow: 

1. Name the kind of pollution.
2. List any three common sources of this pollution.
3. Mention three
...

In the given figure TP and TQ are two tangents to the circle with centre O, touching at A and C respectively. If ∠BCQ = 55^o and ∠BAP = 60^o, find: