Ultraviolet rays of sunlight react and produce:

Related Mcqs:

1. The ultraviolet radiations from the sun cause reaction that produce:

   A. Carbon monoxide B. Sulphur dioxide C. Ozone D. Flourides...

2. The ultraviolet radiations are able to peretreate in a sea as deep as:

   A. 40 meters B. 400 meters C. 200 meters D. 5 meters...

3. Which ecological cycle is directly driven by sunlight?

   A. Hydrologic B. Phosphorus C. Nitrogen D. Sulphur...

4. Shapes of crown serve to expose the leaves to sunlight and air. The types of crowns of tree:

   A. Conical B. Umbrella C. Spherical D. Columnar E. All of the above...

5. Each human couple should produce only two children which help in:

   A. Checking pollution B. Fertility of soil C. Stabilizing the ecosystem D. Improving food-web...

6. The trees which produce root suckers are:

   A. Those which produce more and vigorous root suckers B. those which produce root suckers less in number C. Both (a) & (b) D. None of these...

7. Distribution and marketing of forest produce includes:

   A. Logging plan B. Marketing information C. Sale of produce D. Revenue E. All of the above...

8. Several kinds of minor forest produce are available from the forested areas; these include _________

   A. Flosses, medicinal plants B. Gums, essential oils rosin and turpentine tannins C. Silk and lack production D. All of the above...

9. Source of heating cooking, construction wood and minor produce is:

   A. Fuel wood B. Charcoal C. Production of construction timber D. Wood based industries as livelihood for the people E. All of the above...

10. Source of heating cooking, construction wood and minor produce is:

    A. Fuel wood B. Charcoal C. Production of construction timber D. Wood based industries as livelihood for the people E. All of the above...