ENVIRONMENTAL EDUCATION

AHSEC CLASS 11 - QUESTION PAPER 2025

ALLOTMENT OF MARKS

Section 1 (5 Marks)

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

1. From which year did the Environment (Protection) Act come into force?
2. What are omnivores in ecosystem?
3. What is a species?
4. How much surface of the Earth is covered by water?
5. Give the names of two greenhouse gases.
6. Define pollution.
7. Give the example of man-made disasters.

Section 2 (3 Marks)

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

1. The only Ramsar Site in Assam is ________.
2. The World Environment Day is celebrated on ________ of every year.
3. Ozone layer is found in ________ atmospheric layer.
4. AIDS is caused by ________.
5. Cyclone is a ________ disaster.

Section 3 (10 Marks)

2. Answer in short (any five): (2 × 5 = 10)

1. Write on the significance of environmental education.
2. What is hydrological cycle?
3. What is your idea about ex situ conservation?
4. Define weather.
5. What is ecological pyramid?
6. Write on traffic pollution.
7. How can you stop man-made disaster?
8. Give the names of the diseases happened due to water pollution.

Section 4 (12 Marks)

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

1. In situ and Ex situ conservation
2. Natural and Man-made disasters
3. Weather and Climate
4. Renewable and Non-renewable natural resources
5. Food chain and Food web
6. Solid wastes and Soil pollution
7. Road marking and Zebra crossing
8. Carnivores and Herbivores

Section 5 (10 Marks)

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

1. Write on the energy flow in an ecosystem.
2. Give two important social issues and write on their remedies.
3. What is pollutant? Write on the impacts of air pollution.
4. What are disasters? Write on the impacts of man-made disaster.