Multiple Choice Questions on Environmental Studies Set-3
MCQ on Ecosystem and Biodiversity
1. Which statement is correct with respect to the food chain?
- Every component of food chain forms trophic level
- Inter-relation between different food chains is known as a food web
- All the chains formed by nutritional relations is used to understand energy flow.
- All of the above
Answer : D
2. Which of the following terms does NOT apply to humans?
- heterotrophs
- primary producers
- secondary consumers
- primary consumers
Answer : B
3. Which of the following requires maximum energy?
- Secondary consumer
- Primary producer
- Decomposer
- Primary consumer
Answer : B
4. “The pyramid of energy is always upright” states that
- The energy conversion efficiency of carnivores is better than herbivores
- The energy conversion efficiency of herbivores is better than carnivores
- Energy conversion efficiency is the same in all trophic levels.
- Producers have the lowest energy conversion efficiency
Answer : B
5. How many bio-geographical regions are present in India?
Answer : D
6. pyramid of biomass in aquatic ecosystem is
- straight
- constant
- inverted pyramid
- upright
Answer : C
7. In an aquatic ecosystem phytoplankton can be considered as a
- Consumer
- Macroconsumer
- Saprotrophic organisms
- Producer
Answer : D
8. Which one of the following areas in India, is a hotspot of biodiversity?
- Eastern Ghats
- Gangetic Plain
- Sunderbans
- Western Ghats
Answer : D
9. The term Alpha diversity refers to
- Genetic diversity
- Species diversity
- Community and ecosystem diversity
- Diversity among the plants
Answer : C
10. Lime is added to the soil which is too
- Sandy
- Salty
- Alkaline
- Acidic
Answer : D
11. Ecosystem does not consist of
- Decomposer
- Producer
- Consumer
- Seller
Answer : D
12. Genetically different population with the same physical features is known as ____________
- Ecosystem
- Community
- Ecads
- Ecotype
Answer : D
13. __________ is not generally seen in biodiversity hotspots.
- Loss of diversity
- Endemism
- Species richness
- Lesser interspecific competition
Answer : D
14. Example of an ex-situ conservation.
- Sacred groves
- Seed bank
- National park
- Wildlife sanctuary
Answer : B
15. Who proposed the term ecosystem?
- Grinnel
- Turesson
- A.G. Tansley
- Lindeman
Answer : C
16. Niche is a place where particular organisms live.
Answer : B
17. Which of the following represent maximum number of species among global biodiversity?
- Algae
- Fungi
- Lichens
- Mosses and Ferns
Answer : B
18. Biodiversity of a geographical region represents
- Genetic diversity present in the dominant species of the region
- Endangered species found in the region
- Species endemic to the region
- The diversity in the organisms living in the region
Answer : D
19. Which one of the following is not used for ex situ plant conservation?
- Seed banks
- Field gene banks
- Botanical Gardens
- Shifting cultivation
Answer : D
20. The greatest problem of water conservation is to reduce the amount of
- Precipitation
- Groundwater
- Evaporation
- Runoff water
Answer : D