Ecosystem
Class 12 · Biology
32 questions21 easy8 medium3 hard
Sample Questions
Q1.Nitrogen fixation converts:
- AAtmospheric N₂ to NO₃⁻
- BN₂ to ammonia
- CAmmonia to N₂
- DNitrate to N₂
Q2.Tundra biome is found in:
- AEquatorial regions
- BPolar and high mountain regions
- CTropical areas
- DGrasslands
Q3.Biomes are characterized by:
- AClimate only
- BVegetation patterns
- CBoth climate and vegetation
- DAnimals only
Q4.The nitrogen cycle involves:
- ANitrogen fixation
- BNitrification and denitrification
- CDecomposition
- DAll of the above
Q5.Pioneer species in succession:
- AAre most competitive
- BCannot tolerate harsh conditions
- CAre first colonizers of bare areas
- DAre always plants
Q6.This is a sample question to preview what you'll get in the full practice test...
- A. Option one
- B. Option two
- C. Option three
- D. Option four
Concepts Covered
BiomesEcosystem componentsEnergy flowFood chainsFood websNutrient cyclesSuccessionTrophic levels
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