ENVIRONMENTAL EDUCATION

AHSEC CLASS 11 - QUESTION PAPER 2024

ALLOTMENT OF MARKS

Section 1 (5+3 Marks)

1. (a) Answer in short (any five): (1 × 5 = 5)

1. Define genetic diversity.
2. Write the full form of SDRF.
3. What is food chain?
4. Write the name of a National Park of Assam.
5. What is ecosystem?
6. Which day is observed as the World Environment Day?
7. What is the solid mantle of the Earth?

(b) Fill in the blanks (any three): (1 × 3 = 3)

1. Ozone is found in ________ of atmosphere.
2. Diarrhoea is a ________ disease.
3. Loktak Lake is situated in ________.
4. Frog is ________ level consumer of ecosystem.
5. Mandatory road signs are generally ________ shaped.

Section 2 (10 Marks)

2. Write short accounts on (any five): (2 × 5 = 10)

1. Food web
2. Climate change
3. Ecological pyramid
4. In situ conservation
5. Soil pollution
6. Trophic level
7. The Wildlife (Protection) Act, 1972
8. Biodiversity of Assam

Section 3 (12 Marks)

3. Define and distinguish (any four): ((1+2) × 4 = 12)

1. Consumer and Decomposer
2. Food chain and Food web
3. Pollutant and Pollution
4. Atmosphere and Biosphere
5. Seat belt and Helmet
6. Road marking and Zebra crossing
7. Natural disaster and Man-made disaster

Section 4 (10 Marks)

4. Answer the following questions (any two): (5 × 2 = 10)

1. Describe the various causes of depletion of ozone layer.
2. Describe the various causes of air pollution.
3. What do you mean by global warming? Mention two consequences of global warming.
4. Write the role of students in disaster management.
5. Write about the major causes of deforestation in Northeast India.