Desert Animals Chapter 9 NCERT Solution

byStudy Hackers

 WORKING WITH THE TEXT

A. 1. Talk to your partner and say whether the following statements are true or false.

(i) No animals can survive without water.
(ii) Deserts are endless sand dunes.
(iii) Most snakes are harmless.
(iv) Snakes cannot hear, but they can feel vibrations through the ground.
(v) Camels store water in their humps.
Answer:
(i) True
(ii) False
(iii) True 
(iv) True
(v) False

2. Answer the following questions.

(i) How do desert animals survive without water? (1)
Answer:
The desert animals find different ways to get and store water.

(ii) How do mongoose kill snakes? (6)
Answer:
Mongoose like to hunt together. They are famous for killing snakes without getting hurt themselves. They can move very fast. They get aside each time the snake tries to bite them. They trouble the snake until it gets tired. They quickly attack and kill it.

(iii) How does the hump of the camels help them to survive when there is no water? (9)
Answer:
Some camels have only a single hump, others have two. Single hump camel is used for riding. The hump, people wrongly believe, stores water. It is full of fat. The fat serves as food for the animal. The hump becomes smaller as the fat is used up. Camels can survive without water for upto ten months without drinking any water. They get all the water they need from tree leaves and plants.

B. Read the words/phrases in the box. With your partner find their meaning in the dictionary.
    see the box in book.
Fill in the blanks in the following passage with the above words/phrases.

All animals in forests and desert struggle to __________ in ________ . Though most of the animals are _______, some are dangerous when __________ . If an _________ is noticed, they attack or bite to save themselves. They struggle ____________ for food and water. Some animals are called _________ because they ___________ on other animals.
Answer:
All animals in forests and deserts struggle to survive in harsh conditions. Though most of the animals are harmless, some are dangerous when threatened. If an intruder is noticed, they attack or bite to save themselves. They struggle continually for food and water. Some animals are called predators because they prey on other animals.

SPEAKING

Look at these sentences.
  • Deserts are the driest place on earth.
  • Gerbils spend the hottest part of the day in cool underground burrows.
Now form pairs. Ask questions using a suitable form of the word in brackets. Try to answer the questions too.
Do you know 
  1. which animal is the _______ (tall)?
  2. which animal runs the _________ (fast)?
  3. which place on earth is the __________ (hot) or the _________ (cold)?
  4. which animal is the _________ (large)?
  5. which is the ________ (tall) mountain in the world?
  6. which is the _________ (rainy) place on earth?
  7. which is the _________ (old) living animal?
can you add some questions of your own?
Answer:
  1. Which animal is the tallest?
  2. Which animal runs the fastest?
  3. Which place on earth is the hottest or coldest?
  4. Which animal is the largest?
  5. Which is the tallest mountain in the world?
  6. Which is the rainiest place on earth?
  7. Which is the oldest living animal?

THINKING ABOUT LANGUAGE

A. Look at these sentences.
  • Most snakes are quite harmless, but a few are poisonous.
  • Most snakes lay eggs, but the rattlesnake gives birth to its young.
Now write five sentences like these using 'most' and the clues below.

1. (90% of) people are honest (10%) are dishonest.
     ______________________________________
     ______________________________________
2. (Lots of) fruit have plenty of sugar, (some) citrus fruit are low in sugar.
    ________________________________________________________
    ________________________________________________________
3. (Every soft drink except this one) has lots of 'empty calories).
    _________________________________________________
    _________________________________________________
4. (The majority of) films are romances, (a few) are on other topics.
    ____________________________________________________
    ____________________________________________________
5. (A majority of) people agree that he is a good leader, (just a few) disagree.
    ___________________________________________________________
    ___________________________________________________________
Answer:
  1. Ninety percent of people are honest, but 10% are dishonest.
  2. Lots of fruits have plenty of sugar, but some citrus fruits are low in sugar.
  3. Every soft drink except this one has lots of "empty calories"
  4. The majority of films are romances, only a few are on other topics.
  5. A majority of people agree that he is a good leader, just a few disagree.
B. Look at these sentences.
  • Animals cannot survive for long without water.
  • So desert animals have to find different ways of coping.
The first sentence says what cannot happen or be done; the second tells us what must, therefore, be done, what it is necessary to do. Complete these sentences using cannot and have to/ has to.
  1. You _______ reach the island by land or air; you _______ go by boat.
  2. We _______ see bacteria with our eyes; we _________ look at them through a microscope.
  3. He ________ have a new bicycle now; he ________ wait till next year.
  4. Old people often _______ hear very well; they ________ use a hearing aid.
  5. Road users ________ do what they wish; they _________ follow the traffic rules.
  6. She _______ accept this decision; she _________ question it.
  7. You _________ believe everything you hear; you ________ use your own judgement.
Answer:
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