MCQs on Olympics

1) Consider the following pairs:

1. Nokrek Bio-sphere Reserve : Garo Hills
2. Logtak (Loktak) Lake : Barail Range
3. Namdapha National Park : Dafla Hills

Which of the above pairs is/are correctly matched?

1. 1 only
2. 2 and 3 only
3. 1, 2 and 3
4. None

   Click Here for Answer   Answer -A (only 1)    

2) Consider the following pairs about parks and rivers passing through them:

1. Corbett National Park: Ganga
2. Kaziranga National Park: Manas
3. Silent Valley National Park: Kaveri

Which of the above pairs is/are correctly matched?

1. 1 and 2
2. 3 only
3. 1 and 3
4. None

   Click Here for Answer   Answer -(d) None of the rivers flow through these Parks   

3) In which of the following States is lion-tailed macaque found in its natural habitat?

1. Tamil Nadu
2. Kerala
3. Karnataka
4. Andhra Pradesh

Select the correct answer using the codes given below.

1. 1, 2 and 3 only
2. 2 only
3. 1, 3 and 4 only
4. 1, 2, 3 and 4

Click Here for Answer   Answer -(a)    

4) In the grasslands, trees do not replace the grasses as a part of an ecological succession because of

1. insects and fungi
2. limited sunlight and paucity of nutrients
3. water limits and fire
4. None of the above

   Click Here for Answer   Answer - (c) water limits and fire 

5) Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?

1. Oceans, lakes, grasslands, mangroves
2. Mangroves, oceans, grasslands, lakes
3. Mangroves, grasslands, lakes, oceans
4. Oceans, mangroves, lakes, grasslands

   Click Here for Answer   Answer - (c)    

6) Due to improper / indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?

1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium

Select the correct answer using the codes given below.

1. 1, 3, 4, 6 and 7 only
2. 1, 2, 3, 5 and 6 only
3. 2, 4, 5 and 7 only
4. 1, 2, 3, 4, 5, 6 and 7

   Click Here for Answer   Answer - (b)     

7) Which of the following can be found as pollutants in the drinking water in some parts of India?

1. Arsenic
2. Sorbitol
3. Fluoride
4. Formaldehyde
5. Uranium

Select the correct answer using the codes given below.

1. 1 and 3 only
2. 2, 4 and 5 only
3. 1, 3 and 5 only
4. 1, 2, 3, 4 and 5

   Click Here for Answer   Answer -C (only 1, 3 and 5)   

8) Which one among the following industries is the maximum consumer of water in India?

1. Engineering
2. Paper and pulp
3. Textiles
4. Thermal power

   Click Here for Answer   Answer -(D) Thermal Power     

9) Acid rain is caused by the pollution of environment by

1. carbon dioxide and nitrogen
2. carbon monoxide and carbon dioxide
3. ozone and carbon dioxide
4. nitrous oxide and sulphur dioxide

   Click Here for Answer   Answer - (d)     

10) Photochemical smog is a resultant of the reaction among

1. NO₂, 0₃ and peroxyacetyl nitrate in the presence of sunlight
2. CO, 02 and peroxyacetyl nitrate in the presence of sunlight
3. CO, CO2 and N02 at low temperature
4. High concentration of N02, O3 and CO in the evening

   Click Here for Answer   Answer - (a)     

11) With reference to food chains in ecosystems, consider the following statements:

1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.

Which of the statements given above is / are correct?

1. 1 only
2. 1 and 2 only
3. 1, 2 and 3
4. None

   Click Here for Answer   Answer - (A) only 1     

12) Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?

1. Ecotone
2. Ecological niche
3. Habitat
4. Home range

   Click Here for Answer   Answer - (b)     

13) With reference to the food chains in ecosystems, which of the following kinds of organism is / are known as decomposer organism/organisms?

1. Virus
2. Fungi
3. Bacteria

Select the correct answer using the codes given below.

1. 1 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3      

   Click Here for Answer   Answer - (b)   

14) Consider the following fauna of India:

1. Gharial
2. Leatherback turtle
3. Swamp deer

Which of the above is/are endangered?

1. 1 and 2 only
2. 3 only
3. 1, 2 and 3
4. None 

Click Here for Answer   Answer -(a)    

15) Consider the following

1. Star tortoise
2. Monitor lizard
3. Pygmy hog
4. Spider monkey

Which of the above found in India?

1. 1, 2 and 3 only
2. 2 and 3 only
3. 1 and 4 only
4. 1, 2, 3 and 4

Click Here for Answer   Answer -(a) only 1,2 and 3   

16) Consider the following organisms

1. Agaricus
2. Nostoc
3. Spirogyra

Which of the above is / are used as biofertilizer / biofertilizers

1. 1 and 2
2. 2 only
3. 2 and 3
4. 3 only

Click Here for Answer   Answer -(b) only 2   

17) Which of the following adds / add nitrogen to the soil?

1. Excretion of urea by animals
2. Burning of coal by man
3. Death of vegetation

Select the correct answer using the codes given below.

1. 1 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

   Click Here for Answer   Answer -(C) 1 and 3