Acid rain is mainly caused by increased concentration (in atmosphere) of:

Related Mcqs:

1. Acid rain means:

   A. A type of pollution which washes out of the atmosphere as dilute sulphuric and nitric acids
   B. It tends to be a regional rather than a global phenomenon linked to particular industrial activities and meteorological conditions
   C. Both (a) & (b)
   D. None of these

2. Acid rain brings with it:

   A. Sulphuric acid alone
   B. Nitric acid alone
   C. Nitrous acid and sulphurous acid
   D. Sulphuric acid, sulphurous acid nitric acid and, nitrous acid

3. The concentration of SO2 in the atmosphere is around:

   A. 0.01 ppm
   B. 0.001 ppm
   C. 0.5 ppm
   D. 0.75 ppm

4. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

5. Tropical rain forests are:

   A. The most valuable and the richest ecosystems on earth
   B. They play a critical pat in the earth’s life support systems and house 50% and possibly as much as 90% of all the species on earth
   C. They are a key storehouse of foods, oils and minerals and source of ingredients that make up a range of medical treatments
   D. All of the above

6. Rain damage is / are:

   A. Both high and low precipitation in the form of rain is harmful for the forest crop
   B. A large chunk of forest area may be lost as a result of excessive rainfall
   C. Streams get flooded and wash away wooded land tree along the river banks are uprooted during floods
   D. All of the above

7. The most striking difference between tropical rain forests and temperate forests is that:

   A. The tropical rain forests have preponderance of angiosperms while the temperate ones have preponderance of gymnosperms
   B. The trees of temperate forests are taller than these of tropical rain forests
   C. Plants of temperate forests are comparatively more mesophytic
   D. Tropical forests are comparatively homogenous

8. Monsoon ______ is the most important, in so far as quantity of rain is concerned:

   A. July to September
   B. August to November
   C. September to December
   D. None of these

9. Soil erosion in plains consequent to rain fall is initiated by:

   A. Rill erosion
   B. Sheet erosion
   C. Gully erosion
   D. All of these

10. The presence of O3 in atmosphere of earth:

    A. Has been responsible for increasing the average global temperature in recent
    B. Is advantageous since it supplies O2 for people travelling in jets
    C. Hinders higher rate of photosynthesis
    D. Helps in checking the penetration of ultra violet rays to earth