General Science Q & A part - 2

11.The study of the Environmental Sciences includes which of the following?

1. Traditional science

2. Societal values

3. Political awareness

Select the correct answer using the codes given below

(a)    1 and 2 only

(b)   1 and 3 only

(c)    None of the above

(d)   All of the above

12. Social and political decisions are made with respect to political jurisdictions; environment problems

(a) respect political boundaries

(b) often have little to do with regional economic decisions

(c)  often transcend these jurisdictions

(d)None of the above

13. Environmental scientists use an ecosystem approach to understand environmental problems. Which of the following will be taken into account?

1. The interrelationship between the organisms.

2. Human activity

3. Geography

Select the correct answer using the codes given below:

            (a)    1 only                    (b) 2 only

(c)1 and2 only             (d) 1, 2 and 3

14. The concept of carbon credit originated from which one of the Following?

(a) Earth summit, Rio de Janerio

Kyoto Protocol

Montreal Protcol

G-8 summit, Heiligendamm

15. how does the gap between rich and poor countries contribute to the current environmental crisis?

1. Rapid industrialisation in developing countries poisons the cities.

2. Developed countries consume a disproportionate share of the resources.

Increased agricultural production in developing countries often destroys soil and forests.

Which of the above given statements are true?

            (a)    1 and  2only      (b) 1, 2 and 3

(c )1 and 3                (d) 2 and 3

16. When tall trees shade out short and shade intolerant species, the interactions known as

 (a) Parasistism

 (b) Predation

       (c) Habitat destruction

       (d) Competition

17. Consider the following pairs:

1. Carnivore-Red-tailed Hawk

2. Herbivore –fields mouse

3. Decomposer – Termites

4. Producer – Pitch Pine

5. Detritivore – Earthworm

6. Omnivore – Pigs

18. Green plants do not photosynthesis during night time, then how early morning walk is considered to be more beneficial?

(a) Green algae and cyanobacteria in marine environment provide about 70% of the free oxygen. The terrestrial plants have no contribution,

(b) Early in morning there is comparatively low level of air pollution.

(c) Plants are very important in the cycling of carbon dioxide.

(d)None of the above.

19. Which of the following would be the part of the carbon cycle?

1. Animal  respiration

2. Plant respiration

3. Production of sugars in plants

4. Production of proteins in animals

Select the correct answer using the codes given below:

            (a)    1, 2 and 3      (b) 1, 2 and 4

(c)2, 3 and 4        (d) all of the above.

20. Consider the following statement.

Rachel Carson’s book silent Spring (1962) was about

     1.       The potential ecological devastation of pesticide , such as DDT, in the ecosystem

     2.       Rapid global warming resulting from fossil fuel burning and deforestation.

     3.       The potential  for resource depletion leading to global poverty and starvation from increasing population control

     4.       Socio-economic chaos resulting from a computer virus and over-concentration on technology and computer

Which  of the above given statements is/are correct?

             (a)    1 only                          (b) 2 only

(c) 1 and 3 only                  (d) None of the above