Ecosystem MCQs with Answers

The process of conversion of ammonia to nitrite or nitrate is called?

• A.Ammonification
• B.Nitrification
• C.Denitrification
• D.Nitrogen fixation

If the source of the pollution is stationary or immobile then that is called _?

• A.Point source of pollution
• B.Non-point source of pollution
• C.Mobile source of pollution
• D.Diffuse source of pollution

The most likely explanation for the recent decline in cichlid species diversity in Lake Victoria is ?

• A.Hybridization
• B.Fission
• C.Fusion
• D.Genetic drift

Two or more species occupying identical or overlapping areas are known as ?

• A.Sympatric
• B.Allopatric
• C.Parapatric
• D.Peripatric

Process where nitrogenous compound of living organism convert into nitrates is called?

• A.Ammonification
• B.Nitrification
• C.Denitrification
• D.Nitrogen fixation

Which resource can be used over and over again, hence making them unlimited?

• A.Renewable Sources
• B.Non-Renewable Sources
• C.Fossil Fuels
• D.Mineral Resources

Which of the following terms is used for species evolving from the same ancestor to different ecological niches?

• A.Convergent evolution
• B.Divergent evolution
• C.Parallel evolution
• D.Co-evolution

The life sustaining envelop of earth is _?

• A.Hydrosphere
• B.Lithosphere
• C.Biosphere
• D.Atmosphere

Resources used outside body, gathering of which leaves them?

• A.Unaltered resources
• B.Renewable resources
• C.Exhausted resources
• D.Non-renewable resources

All human beings, animals, and plant life depend on _?

• A.Oxygen
• B.Sunlight
• C.Water
• D.Soil