Class 11 Environmental Studies Important Chapter 1 Basic Concept of Environment

Class 11 Environmental Studies Important Chapter 1 Basic Concept of Environment Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Environmental Studies Important Solutions and select need one. AHSEC Class 11 Environmental Education Additional Notes English Medium Download PDF. HS 1st Year Environmental Studies Important Solutions in English.

Class 11 Environmental Studies Important Chapter 1 Basic Concept of Environment

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Environmental Studies Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Environmental Studies Important Notes in English for All Chapters, You can practice these here.

Basic Concept of Environment

Chapter: 1

UNIT- I : Environmental Education

IMPORTANT QUESTION AND ANSWER

Short Question and Answer:

1. What is the meaning of ‘Environment’?

Ans: The word ‘environment’ means the condition or surroundings around us.

2. What are the components of the environment?

Ans: The environment has three components: abiotic components, biotic components, and energy components.

3. Into how many parts can the abiotic or physical environment be divided?

Ans: The abiotic or physical environment can be divided into three parts.

4. What percentage of water is directly usable by humans?

Ans: Only 1% of the Earth’s water is directly usable by humans.

5. In which year was the first global government-level conference on environmental education held in the Soviet Union (Tbilisi)?

Ans: In 1977, in the Soviet Union (Tbilisi), the first conference on environmental education was held.

6. From which language is the word ‘environment’ derived?

Ans: The word ‘environment’ is derived from the French word “Environner”.

7. What are biotic components?

Ans: Living beings like humans, animals, and plants are called biotic components.

8. What is one feature of environmental education?

Ans: One feature of environmental education is:

(i) It is multidisciplinary and integrates knowledge from various branches.

9. In which year did the Stockholm Conference emphasize the need for environmental-based education?

Ans: In 1972, the Stockholm Conference emphasized the necessity of environmental education.

10. How many major layers are there in the atmosphere?

Ans: The atmosphere is broadly divided into four layers.

11. What are the water resources included in the hydrosphere?

Ans: Oceans, seas, rivers, lakes, reservoirs, glaciers, polar ice caps, and underground water.

12. What percentage of the Earth’s surface is covered by water?

Ans: About 71% of the Earth’s surface is covered by water.

13. What is the total volume of water on Earth?

Ans: The Earth contains about 1400 million cubic kilometers of water.

14. Why is ocean water not suitable for human use?

Ans: Ocean water is saline and thus unsuitable for direct human use.

15. What percentage of water on Earth is freshwater?

Ans: Only 3% of Earth’s water is freshwater or usable water.