STD 5- CHAPTER 4: ANIMALS- OUR FRIENDS, EXERCISE QUESTIONS AND ANSWERS

 A.     FILL IN THE BLANKS.

1.      We keep ______ and _______ as pets.

Ans: dog, cat

2.      ______ assist police in search operations.

Ans: dog

3.      Kasturi is an ingredient of ______ deer.

Ans: Musk

4.      ________ of elephant have been used for making jewellery.

Ans: Tusks or ivory

5.      Extinction of frogs will increase the _____ population.

Ans: insect

6.      Food chains are found in all ______.

Ans: habitats

B.      MATCH THE FOLLOWING:

 

1.      Crab                             a. Pulling cart

2.      Oyster                         b. endangered animal

3.      Ox                                c. pearl

4.      Mountain goat          d. sea food

5.      Bald eagle                  e. Pashmina wool

      Ans:

1.      Crab                             d. sea food

2.      Oyster                         c. pearl

3.      Ox                                a. Pulling cart

4.      Mountain goat          e. Pashmina wool

5.      Bald eagle                  b. endangered animal

 

C.      TICK THE CORRECT OPTION.

 

1.      A delicacy made from the unfertilised eggs of a variety of fish is the -

(a)   kasturi        (b) caviar          (c) pashmina        (d) tusk

      Ans: caviar

2.      Which of these animals is extinct?

(a)   Bactrian camel              (b) golden lion          (c) quagga           (d) panda

      Ans: quagga

3.      The body part of rhinoceros, for which it is often hunted by humans, is -  

(a)   bones       (b) horns        (c) legs       (d) skin

       Ans: horns

4.      Humans are destroying habitat of animals by –

(a)   Planting trees                                      (b)  reducing water pollution

(c)    Controlling wildlife trade                 (d) cutting down trees

      Ans: cutting down trees

5.      Which of the following food chain is correct?

(a)   Leaves -> Frog -> Snake                                     

(b)   Grains -> Hen  -> Man

(c)    Acorn -> Rat   -> eagle

(d)   Plant -> jackal  -> lion

      Ans: acorn -> Rat -> Eagle

D.     ANSWER THE FOLLOWING QUESTIONS IN BRIEF.

 

1.      Name five wild animals.

Ans: Five wild animals are: elephant, tiger, lion, bear and jackal.

2.      Give the meaning of the term food chain.

Ans: The process of ‘Who eats whom’ is called the food chain.

3.      How are human beings destroying the natural surroundings of wild animals?

Ans: Human beings are destroying the natural surroundings of wild animals by cutting down forests.

4.      Name the animals that can become man eaters.

Ans: Tiger, Lion, Jackal, Leopard can become man eaters.

5.      Which Act has been passed by the Indian Government to protect wildlife?

Ans: The Indian Government has passed the Wildlife protection Act to protect wildlife.

E.      ANSWER THE FOLLOWING QUESTIONS.

 

1.      State any five ways in which animals are useful to us.

Ans: Animals are useful as,

i)          Silk and wool that are used for making cloth, come from silkworm and sheep respectively.

ii)        Leather, obtained from the skin of animals like goat, sheep and buffalo, is used to make shoes, purses and bags.

iii)      Pearls, are obtained from oysters.

iv)      Many types of fish, prawns, lobsters and crabs, are used as sea food.

v)        Animals like horses, camels, elephants are used as means of transport.

2.      Differentiate between extinct and endangered animals. Give two examples of each type.

Ans: Extinct Animals: Those animal species which are no longer living on earth. Examples, Tasmanian tiger, golden toad, quagga, etc.

Endangered Animals: Those animal species that are in danger of becoming extinct, are called endangered animals. Examples, African elephant, golden lion, bald eagle, etc.

3.      What is wildlife trade? Why is it harmful?

Ans: i) The illegal hunting and poaching of animals for the sake of money, is called as wildlife trade.

ii) In this case, animals are killed for their body parts and sold at higher prices.

iii) It is harmful as it resulted in extinction of many animals.

4.      Suggest any four steps to prevent cruelty to animals.

Ans: Four ways to prevent cruelty to animals are,

i) Do not throw polythene bags in the garbage. Stray cattle can swallow them and they may die.

ii) Do not put birds in cages and fish in aquariums. They feel trapped in small spaces and their life span gets reduced.

iii) When visiting a forest, park or garden, one should not remove eggs of birds from their nests.

iv) Put some water in an earthen bowl and keep it outside, especially during summers.

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.

Ans: i) Animals like elephant, bears, rhinoceros, musk deer, are killed for their body parts.

ii) Elephants are hunted for their tusks or ivory.

iii) North and South American bears are also being killed for their gall bladders, which are then used to make medicines.

iv) Rhinoceroses are being hunted for their horns.

v) Musk deer is hunted for Kasturi, an ingredient of many perfumes.