The elimination of branches by the physical and biotic agencies of the environment is called:

Related Mcqs:

1. In a biotic community, primary consumers are:

   A. Herbivores
   B. Detrivores
   C. Carnivores
   D. Omnivores

2. A biotic community comprises:

   A. Plants only
   B. Animals only
   C. Plants and animals
   D. Plants or animals

3. A man is the part of biotic community:

   A. Always
   B. Only when he lives in big cities
   C. Only when he lives in forest
   D. Never

4. Biotic components of an ecosystem include:

   A. Producers only
   B. Consumers only
   C. Producers and Consumers only
   D. Producers, consumers and decomposers

5. Which are the biotic components of forest ecosystem?

   A. Producers
   B. Decomposers
   C. Consumers
   D. All of the above

6. Non-biotic components can be grouped into:

   A. Lithosphere
   B. Hydrosphere
   C. Atmosphere
   D. All of the above

7. Biotic components are:

   A. Producers (Autotrophy)
   B. Macroconsumers (Heterotrophs)
   C. Microconsumers (Saprotrophs/Decomposers)
   D. All of the above

8. These are generally, but not always, developed above the birch zone and in patches, sometimes extensive, within it, probably conditioned by edaphic and biotic factors, in Kashmir, Gilgit, Chitral and Hazara. This type ascends normally to ______ or more above the sub-alpine forests and climate must be similar but more severe than in sub-alpine forests:

   A. 140 m
   B. 150 m
   C. 160 m
   D. 170 m

9. Which one of the following factors is biotic?

   A. Photoperiod
   B. CO2 content to the soil
   C. Texture and porosity of soil
   D. Rainfall

10. Biotic components consist of:

    A. Producers only
    B. Consumers only
    C. Decomposers only
    D. All of the above