CHAPTER - 4
Animals Our Friends
EXERCISE
(Question/Answer)
Highlights
(i) Fill in the blanks.
(ii) Match the following.
(iii) Tick the correct option
(iv) Answer the following questions in brief.
(v) Answer the following questions.
Fill in the blanks
( Exercise )
1. We keep ___________ and ___________ as pets.
2. ___________ assist police in search operations.
3. Kasturi is an ingredient of ___________ deer.
4. ___________ of elephant have been used for making jewellery.
5. Extinction of frogs will increase the ___________ population........................ 6. Food chains are found in all ___________.
Answer
(1) cat, dog
(2) Dog
(3) musk
(4) Tusks
(5) insects
(6) habitats.
Match the following.
( Exercise )
Answer: (1) d (2) c (3) a (4) e (5) b.
Tick the correct option.
( Exercise )
1. A delicacy made from the unfertilised eggs of a variety of fish is the-
2. Which of these animals is extinct?
3. The body part of rhinoceros, for which it is often hunted by humans, is- 4. Humans are destroying habitat of animals by-........................................... 5. Which of the following food chain is correct?
Answer
(i) caviar
(ii) quagga
(iii) horns
(iv) cutting down trees
(v) grains → hen → man
Answer the following questions in brief.
( Exercise )
1. Name five wild animals.
Answer: Elephant, Lion, Tiger, Fox, Bear.
2. Give the meaning of the term food chain.
Answer: Food chain is a process of ‘who eats whom’. A food chain shows how is living organism gets its food.
3. How are human beings destroying the natural surroundings of wild animals?
Answer: Human beings are destroying the natural surroundings of wild animals by cutting down forests and by polluting rivers.
4. Name the animals that can become man eaters.
Answer: Leopards and tigers can become man eaters.
…………………………………………………….
5. Which Act has been passed by the Indian government to protect wildlife?
Answer: Wildlife (protection) act 1972, has been passed by the Indian government to protect wildlife.
Answer the following questions.
( Exercise )
1. State any five ways in which animals are useful to us.
Answer: Animals are useful to us in following ways:
- Silk and wool that are used for making cloth, come from silkworm and sheep respectively.
- Leather, obtain from the skin of animals like goat, sheep and buffalo, is used to make shoes, purses and bags.
- Animals like horses, camels, elephants are used as means of transport.
- Dogs assist police in various search operations.
- Many types of fish, prawns, lobsters and crabs, are used as sea food.
2. Differentiate between extinct and endangered animals. Give two examples of each type.
Answer:
Extinct animals: Those animal species which are no longer living.
Examples- Tasmanian tiger, quagga, golden toad, passenger pigeon etc.
Endangered animals: Those animal species that are in danger of becoming extinct.
Example- African elephant, bacterial camel, bald eagle, golden lion, panda etc.
3. What is wildlife trade? Why is it harmful?
Answer: Some wild animals are being killed because their body parts are used and sold by humans. This is known as wildlife trade. It is harmful because if this type of illegal trade continuous, many species may disappear from the earth.
4. Suggest any four steps to prevent cruelty to animals.
Answer: Four steps to prevent cruelty to animals are as following:
- Do not put birds in cages and fish in aquarium.
- Put some water in an earthen bowl and keep it outside, especially during summer.
- If you have pets, give them the love and good care.
- Do not throw polythene bags in the garbage, stray cattle can swallow them and they may die.
5. Some wild animals are hunted because their body is considered useful by man. Give four examples of such wild animals. Also mention the part of the body which is used in each case.
Answer: Animals which are hunted for their body parts are:
- Musk deer are hunted for Kasturi.
- Tigers are hunted for their skin, claws and teeth.
- Rhinoceros are hunted for their horns.
- Elephants are hunted for their tusks.
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