The Desert Class 7 Worksheet English An Alien Hand

Q.1. The desert plants and animals have adapted themselves to the scarcity of water in deserts. How?

The desert plants and animals have adapted themselves to the scarcity of water in deserts as they have learnt how to adapt themselves to the climatic conditions of the desert and this is the reason why they require less water than most plants and animals. Some plants are strong enough, to have the capacity to store water in their stems, roots and other parts. They constantly suck moisture from the ground. The desert animals, too are able to consume and store more water but there are some animals like camels who can survive without water for many days. The smaller animals, on the other hand, face this adversity by not exposing themselves to heat during the day. Also, they eat other smaller animals from whose meat they could gather moisture. In this way, they have adapted themselves to the scarcity of water.

Q.2. What do the studies suggest about life in the desert?

The studies suggest that the desert can be a beautiful place. It is the home to a variety of people, animals, and plants that have learned to live under very hot, dry and waterless conditions.

Q.3. What is an oasis?

An oasis is like a green island in the middle of a desert where a spring or a well gives plants and trees a better chance to grow.

Q.4. ________ is an example of a hot desert.
(a) Thar
(b) Ladakh
(c) Arctic
(d) Antarctica

Correct Options is (a) 
The Thar Desert, also known as the Great Indian Desert, is a large arid region in the northwestern part of the Indian subcontinent.

Q.5. ________ is an example of a cold desert.
(a) Sahara
(b) Arabian
(c) Ladakh
(d) Thar

Correct Options is (c) 
Deserts can be both cold and hot. Ladakh is located in India and is an example of a cold desert.

Q.6. How do the smaller desert animals fulfill their need for water?

The smaller animals fulfill their need for water by burrowing underground during the hot day and come out at night to eat. Some of them eat other animals and get the water they need from the moisture in the meat. Others eat plants and seeds and get the water they need from plant juices.

Q.7. What happens when it rains in deserts?

Rains are rare in the deserts. Whenever it rains, deserts flowers start blooming. The sight becomes as rewarding as that of any tropical garden.

Q.8. What is the meaning of vegetation?
(a) Trees
(b) Plants
(c) Flowers
(d) All of these

Correct Options is (c) 
Vegetation is a general term for the plant life of a region. It includes plants, trees, fruits, and flowers, etc.

Q.9. Camel can stand high body ________.
(a) water
(b) sweat
(c) temperature
(d) fever

Correct Options is (c) 
Camels can stand high body temperature. They don’t need to sweat and can, therefore, retain the water they drink for long periods of time.

Q.10. What is a popular notion about the desert?
(a) It is an endless stretch of sand
(b) No vegetation grows there
(c) There are no rains
(d) All of these

Correct Options is (d)
Most people believe that deserts are totally dry and barren. The common perception is that they are vast stretches of sand with no rainfall and vegetation.