Consider the following statements with regard to the carbon cycle:
1. Carbon cycling occurs at different levels involving the atmosphere, ocean, and through the living and dead organisms.
2. Decomposers do not contribute to the CO2 pool by any means.
Select the correct answer using the codes given below:
2. Decomposers do not contribute to the CO2 pool by any means.
Important Questions on Environment and Ecology
Which of the following constitute Detritivores?
. Earthworms
. Woodlice
. Millipedes
Select the correct answer using the codes given below:
Consider the following statements:
1. Bioaccumulation is the increase in concentration of a pollutant from the environment to the first organism in a food chain.
2. Biomagnification is the tendency of the pollutants to concentrate as they move from one tropic level to the next.
Which of the statement (s) is/are incorrect?
1. Seed dispersal
2. Air Purification
3. Detoxification
4. Carbon sequestration
Which of the above can be said to be Ecosystem services?
1. Ecozones are the Biogeographic division of the Earth's land surface, based on distributional patterns of terrestrial organisms.
2. Ecozone comprises only land parts of Earth surface, while the biomes comprise both aquatic and land parts.
Which of the above statement(s) is/are correct?
In the context of ecosystem productivity, marine upwelling zones are important as they increase marine productivity by bringing the:
1. Decomposer microorganisms to the surface.
2. Nutrients to the surface.
3. Bottom-dwelling organisms to the surface.
Which of the statement(s) given above is/are correct?
Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower atmosphere because of:
1. Its escape into the outer stratosphere.
2. The photosynthesis by phytoplankton in the oceans.
3. The trapping of air in the polar ice caps.
Which of the statement(s) given above is/are correct?
1. The ocean as a carbon sink would be adversely affected.
2. The food chains in the ocean would be adversely affected.
3. The density of ocean water would drastically decrease.
Select the correct answer using the codes given below:
