Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

61. Outline salient features of carbon cycling in an ecosystem.

445 Views

62.

What is meant by sedimentary cycle?
Draw a simplified model of phosphorus cycle in terrestrial ecosystem.

233 Views

63.

Give the graphic representation of nitrogen cycle.

229 Views

64. What is the other name for decomposers?

149 Views

65. Explain the abiotic and biotic components of an ecosystem.

1084 Views

66. What are ecosystem services ? Briefly explain with an example.

391 Views

67.

Draw a flow diagram showing typical food chain with energy flow and cycling of materials. Give a few examples of food chains.

255 Views

68. What do understand by trophic level?

152 Views

69.

Describe the process of succession on a bare rock.

1772 Views

70.

How is 'stratification' represented in a forest ecosystem?

1128 Views