INSIGHT UPSC QUIZ

 Which of the following are the properties of the image formed by a plane mirror?

1. The image is always real and erect. 

2. The size of the image is equal to that of the object. 

3. The image formed is as far behind the mirror as the object is in front of it. 

4. The image is laterally inverted.

Select the correct answer using the code given below.

 With reference to heterotrophic eukaryotic organisms, Fungi, consider the following statements:

1. All fungus are parasites as they use host organism for food.

2. Lichens have a symbiotic relationship of blue-green algae and fungus.

3. Yeasts and mushrooms are varities of fungus.

Select the correct answer using the code given below:

Consider the following statements:

1. Tendons are type of connecting tissue that connect muscles to bones.

2. Nerve impulses are transmitted with the help of tendons throughout our body.

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

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.

Which of the following statements about ‘Sponges’ is/are correct?

1. Sponges are generally marine organisms and are multicellular symmetrical animals. 

2. In sponges, eggs and sperms are produced by the same individual. 

3. Sponges reproduce asexually by formation of gametes and sexually by fragmentation. 

Select the correct answer using the code 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?

A lemon kept in water in a glass tumbler appears to be bigger than its actual size, when viewed from the sides. This is because of which of the following reasons:

If we study a cell under a microscope, we will come across which among the following bodies inside it?

Consider the following statements about the ‘properties of ethanol’: 

1. Ethanol is insoluble in water. 

2. Consumption of small quantities of dilute ethanol causes drunkenness. 

3. Ethanol can be blended with diesel.

4. Ethanol is used as a solvent in many medicines.

Which of the statements given above are correct?

 Some countries now use alcohol as an additive in petrol. In context of this, consider the following statements: 

1. Addition of alcohol increases the burning efficiency of petrol and reduces knocking.

2. Petrol added with small quantities of alcohol becomes more stable and doesn’t become too hot in warm areas or too cold in freezing temperatures.

3. Alcohol is a cleaner fuel which gives rise to only carbon dioxide and water on burning in sufficient oxygen.

Which of the statements given above is the correct reason for using alcohol as an additive in petrol?