Green manuring plants are:

Related Mcqs:

1. The non-green plants are as important as the green plants because they:

   A. Cause human disease
   B. Cause diseases of other plants
   C. Are useful in several industries
   D. Bring about decomposition of dead animals and plant remains

2. Green plants constitute:

   A. The first trophic level
   B. The second trophic level
   C. The third trophic level
   D. The fourth trophic level

3. In a forest ecosystem, green plants are:

   A. The primary producers
   B. Primary producers only sometimes
   C. The decomposers
   D. The consumers

4. Which group of three living organisms, given below is a link in food chain: Green plants …. Hawk:

   A. Grasshopper, frog, snake
   B. Grasshopper, rat, snake
   C. Millipedes, centipedes, sparrow
   D. Earthworm, hen, rat

5. If all the green plants were to disappear from the earth:

   A. Only the herbivores will die
   B. All the animal will die
   C. Only the carnivores will die
   D. It will not matter to anyone because chemosynthetic bacteria will produce food for all

6. When peacock eats snakes which eat insects thriving on green plants, peacock is:

   A. A primary consumer
   B. A primary decomposer
   C. Final decomposer
   D. The apex of the food pyramid

7. In a fish aquarium green aquatic plants are grown primarily for:

   A. Oxygen
   B. Carbon dioxide
   C. Fish feed
   D. Decoration

8. The maximum amount of CO2 fixed by green plants by way of photosynthesis in a year is:

   A. 9 x 1013 kg
   B. 8 x 1012 kg
   C. 9 x 1011 kg
   D. 8 x 1010 kg

9. Among the plants listed, point out one that does not fit into ecological group represented by the other plants:

   A. Acacia
   B. Aloe
   C. Euphorbia
   D. Rhizophora

10. Among the plants listed, point out one that does not fit into biological group represented by other plants

    A. Euphorbia
    B. Acacia
    C. Vallisneria
    D. Aloe