INSIGHT UPSC QUIZ

The presence of certain minerals is essential in water, however, if found in excess they can be harmful to our body. In this context, which of the following statements are correct?

1. Deficiency of fluoride in drinking water causes diseases such as tooth decay.

2. Excessive sulphate in drinking water causes laxative effect.

3. Excess lead in drinking water can cause disease such as ‘blue baby’ syndrome.

Select the correct answer using the code given below.

Consider the following statements about ‘Human Body’:

1. Muscles contain special proteins which contract and relax to cause movement. 

2. We can control the movement of all the muscles in our body.

Which of the statement(s) given above is/are correct?

 In context of ‘Scrub Typhus’, which of the statements given below is/are correct?

1. It is a disease caused by a bacterium and it spreads to people through bites of infected chiggers.

2. Antibiotics are most effective form of medicine to cure this disease.

3. Recently, a special vaccine has been developed for its prevention by the Department of Biotechnology.

Select the correct answer using codes given below:

Read the following statements carefully in the context of ‘particulate pollutants’?

1. Smoke particulates consist of gaseous or mixture of gaseous and liquid particles formed during combustion of organic matter.

2. Dust is composed of fine solid particles produced during crushing, grinding and attribution of solid materials.

3. Mists are produced by particles of spray liquids and by condensation of vapours in air.

4. Fumes are generally obtained by the condensation of vapours during sublimation, and boiling.

Which of the statements given above are correct?

2. Consider the following statements: 

1. Typhoid fever in human beings is caused by a virus. 

2. Plasmodium is a tiny protozoan responsible for causing malaria.

3. Plasmodium enters the human body through the bite of infected female Anopheles mosquito.

Which of the statements given above is/are correct?

Consider the following statements about Carbon dioxide (CO₂):

1. Volcanic eruptions are a natural source of Carbon dioxide in the atmosphere.

2. Carbon dioxide is confined only to the tropospheric layer of the atmosphere. 

3. Excess of Carbon dioxide in the air is removed by green plants by respiration.

Which of the statements given above is/are correct?

Consider the following sources of protein:

1. Meat

2. Fish

3. Egg

4. Milk

Select the correct sequence of the sources of protein mentioned above in human diet in terms of maximum protein content:

 Consider the following statements:

1. Anti-viral medicines are harder to make as viruses have biochemical mechanisms of their own. 

2. Anti-bacterial medicines target both bacteria and fungi.

Which of the statement(s) given above is/are correct?

 Compass is an important tool used for navigation since old days. In this context, consider the following statements:

1. The compass needle is a magnet which align itself in a particular direction.

2. The compass needle always points towards the magnetic south pole of the earth.

Which of the statement(s) given above is/are correct?

If an opaque object on the path of light becomes very small, light has a tendency to bend around it and not walk in a straight line. This effect is known as: