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Match the following pairs with reference to common air pollutants and its effect/impact on plants and animals:

Pollutant	Associated Effect
1. Sulphur dioxide	A. Aging in plants.
2. Oxides of nitrogen	B. Reduces oxygen carrying capacity of blood.
3. Hydrocarbons	C. Red haze in the traffic.
4. Carbon monoxide	D. Stiffness of flower buds.

Select the correct answer using the code given below.

(A)

1-A, 2-B, 3-C, 4-D

(B)

1-B, 2-A, 3-D, 4-C

(C)

1-C, 2-A, 3-D, 4-B

(D)

1-D, 2-C, 3-A, 4-B

More Questions Selected Just For You. Attempt Now!

1.
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?
2.
Consider the following statements:
1. The aperture of the pupil of a human eye can be changed with the help of the ciliary muscles.
2. The curvature of human eye cannot be changed, because the lens of a human eye is fixed.
Which of the statements given above is/are correct?
3.
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?
4.
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:
5.
In context of cells in the human body, consider the following statements:
1. The shape and size of cells are related to the specific function they perform.
2. A cell is able to live and perform all its functions because of its components known as organelles.
3. All cells present in human body have the same organelles.
Select the correct answer using the code given below:

Match the following pairs with reference to different types of ‘Phyla’ with their most distinctive features:

PHYLA	MOST DISTINCTIVE FEATURE
1. Ctenophora	A. Body segmentation like rings.
2. Platyhelminthes	B. Comb plates for locomotion.
3. Annelida	C. Presence of jointed appendages.
4. Arthropoda	D. Flat body, suckers

Select the correct answer using the code given below.