Theory:

     DESERTS are the driest places on earth and sometimes go for months, or even years, without rain. But even the desert animals cannot survive without water, or for long periods in the scorching sun, so they have had to find different ways of coping with the harsh conditions. For example, gerbils spend the hottest part of the day in cool underground burrows. And strange insects called darkling beetles are experts at catching drops of moisture on their legs, then lifting them into the air until the drops trickle down into their mouths. Not all deserts are endless seas of rolling sand dunes. Some are rocky or pebbly and dotted with small bushes while others are sprinkled with colourful flowers during the spring.
Explanation:
 
Deserts are where no one can find water, and they are known as the driest place on Earth. The animals present in the desert can not survive without water, so they seek a different living place for every climatic change. The desert is at high temperatures, and they have the worst conditions where the animals can't survive.
 
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Desert
 
For example, Gerbils occupy the place underground to feel less heat.
 
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Gerbils
 
Some insects like Darkling Beetles catch the drops of moisture on their legs and suck them through the air.
 
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Beetles
  
During the spring season, the weather usually turns warmer, and trees begin to grow their leaves, and plants start to flower. Deserts are generally rocky and dotted with bushes.
  
Meanings of difficult words:
  
Numbers
Words
Meanings
1.
ScorchingVery hot
2.
GerbilsMouse-like desert rodents with long hind legs
3.
BurrowA hole or tunnel dug by a small animal
4.
PebblyStony
5.
BeetleAn insect
6.
DunesA mounds or ridges of sand
Reference:
National Council of Educational Research and Training (2006). Honeysuckle. Desert Animals (pp. 112-120). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.