Introduction to Ecosystem Function

Q.

The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as

1. Standing crop

2. Climax community

3. Climax

4. Standing state

Q. .If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected, because

1. the mineral movement will be blocked

2. the rate of decomposition will be very high
3. energy flow will be blocked
4. herbivores will not receive solar energy.

Q.

Formation of peroxide in ether can be prevented by:

1. Adding a small amount of Copper (I) oxide

2. Shaking with ferrous salt solution

3. Distilling with conc. sulphuric acid

4. All of the above

Q. Which one of the following aspects is NOT a component of functional unit of ecosystem?

1. Productivity
2. Decomposition
3. Energy flow
4. Mortality

Q. Which of the following is not a functional unit of an ecosystem

1. Productivity
2. Energy
3. Decomposition
4. Stratification