Samacheer Kalvi 8th Science Unit 22 Book Back Answers:

Samacheer Kalvi 8th Standard New Science Book Back 1 Mark and 2 Mark Question & Answers PDF uploaded and available below. Class 8 New Syllabus 2021 to 2022 Book Back Question & Answer available for both English and Tamil Mediums. Class 8th Science Book Unit 22 – Conservation of Plants and Animals Answers/Solutions are provided on this page. 8th Std Science Book consists of 23 units, All Science Book Back One, and Two Mark Solutions are given below.

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Samacheer Kalvi 8th Science Book Back Solutions PDF:

8th Science Subject 1 Mark and 2 Mark Solutions PDF available below. Click the Download option to download the book back 1 Mark & 2 Mark questions and answers. Take the printout and use it for exam purposes. Samacheer Kalvi 8th Science Unit 21 Answers are given below.

Science Book Back Answers

Unit 22 – Conservation of Plants and Animals

I. Choose the best answer:

1. The plants found in a particular area are known as …………….
(a) fauna
(b) flora
(c) endemic
(d) rare
Answer: (c) endemic

2. Deforestation means …………….
(a) cleaning of forest
(b) to grow plants
(c) to look after plants
(d) None of these
Answer: (d) None of these

3. The Red Data Book gives a list of …………….
(a) endemic species
(b) extinct species
(c) natural species
(d) None of these
Answer: (d) None of these

4. Insitu conservation is …………….
(a) off site conservation
(b) on site conservation
(c) Both a and b
(d) None of these
Answer: (b) on site conservation

5. Wildlife Protection Act was implemented in …………….
(a) 1986
(b) 1972
(c) 1973
(d) 1971
Answer: (b) 1972

II. Fill in the blanks:

1. WWF stands for …………….
2. The animal found in a particular area is known as …………….
3. Red Data Book is maintained by …………….
4. Mudhumalai Wildlife Sanctuary is located in ……………. district.
5. ……………. is observed as ‘World Wildlife day’.

Answer:

1. World Wildlife Fund
2. endemic
3. International Union for conservation of Nature
4. Nilgiris
5. March 3

III. Match the following:

1. Gir national park – Madhya Pradesh
2. Sundarabans National Park – Uttarangal
3. Indira Gandhi National Park – West Bengal
4. Corbett National Park – Gujarat
5. Kanha National Park – Tamil Nadu

Answer:

1. Gir national park – Gujarat
2. Sundarabans National Park – West Bengal
3. Indira Gandhi National Park – Tamil Nadu
4. Corbett National Park – Uttarangal
5. Kanha National Park – Madhya Pradesh

IV. Answer very briefly:

1. What is global warming?
Answer:
Gases methane and carbon dioxide accumulating in the atmosphere and trap the heat energy inside the atmosphere leading to increase in temperature is called Global warming.

2. What is known as extent species?
Answer:
Species which no longer exist on Earth are called extinct species.

3. Give few example for extinct species.
Answer:
Dinosaurs and Dodo are examples of extinct species.

4. Name two endangered animals.
Answer:

1. Snow Leo pard
2. Asiatic Lion

5. What is ICBN?
Answer:
International Code of Botanical Nomenclature. These are a set of International rules proposed by botanists to ensure a stable, universal and uniform system of naming plants.

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