INSIGHT UPSC QUIZ

Unicellular organism are unique because they are made up of a single cell only. Which of the following is/are examples of unicellular organisms?

1. Amoeba

2. Yeast

3. Bacteria

Select the correct answer using the code given below:

Consider the following statements about ‘Biochemical Oxygen Demand’ (BOD):

1. It is the amount of oxygen required by bacteria to break down the organic matter present in a certain volume of a sample of water.

2. Highly polluted water have BOD value of less than 5 ppm. 

Which of the statements given above is/are correct?

The nearest and the farthest points up to which a normal human eye can see objects clearly are between: 

Consider the following statements:

1. Exchange of gases in plants occurs not only across the surface of leaves but also across the surface of stems and roots.

2. Plant close its pores known as the Stomata, when they do not need carbon dioxide for photosynthesis.

3. Guard cells present in plants are responsible for controlling the movement of water in them. 

Which of the statements given above is/are correct?

Consider the following statements about pesticide residue in our food chain:

1. It is introduced in the food chain by aquatic plants and animals.

2. These chemicals get accumulated progressively at each trophic level. 

3. Human body accumulates minimum concentration of these chemicals.

Select the correct answer using the code given below:

Consider the following statements:

1. Methanol is a low carbon, hydrogen carrier fuel produced from high ash coal, CO₂ from thermal power plants and natural gas.

2. ‘Methanol Economy’ programme has been launched with the objective of reducing India's oil import bill and greenhouse gas (GHG) emissions. 

3. The Methanol Economy programme has been launched by the Ministry of Petroleum and Natural Gas. 

Which of the statements given above is/are correct?

 Consider the following statements with reference to the ‘magnetic field’ of a bar magnet:

1. Magnetic field is a quantity that has both direction and magnitude. 

2. Inside the magnet, the direction of field lines is from its south pole to north pole.

3. Magnetic field-lines of two different magnets can intersect each other.

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

 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 ‘blood’ present in the human body, consider the following statements:

1. It carries oxygen and food to all the cells in human body. 

2. It collects wastes from the cells for disposal. 

3. It is a type of connective tissue. 

Which of the statements given above is/are correct?

Consider the following statements: 

1. The motion of the moon around the earth is due to the centrifugal force. 

2. The moon rotates around its axis due to the gravitational pull of the earth. 

Which of the statement(s) given above is/are NOT correct?