CBSE Class 7th English Passage Based Question Chapter 3 The Desert

Paragraph 1:

Deserts are often thought of as endless stretches of hot, dry sand with no rain, vegetation, or shelter, but this is not entirely true. For those who study them, deserts can be beautiful and home to diverse people, animals, and plants adapted to the harsh environment. While deserts lack the thick vegetation of other climates, rare rains can cause desert flowers to bloom, creating a stunning landscape. Deserts are not always flat; they may feature mountains, hills, and even oases, which are green areas with water sources where plants and trees can thrive. Deserts can be hot, like the Thar, or cold, like Ladakh.

Questions and Answers:

1. What is the common belief about deserts?
   That they are endless stretches of hot, dry sand without rain, vegetation, or shelter.
2. What makes deserts beautiful to those who study them?
   Their unique landscapes and the variety of life adapted to the environment.
3. What happens in deserts after rare rains?
   Desert flowers bloom, creating a beautiful sight.
4. What are oases?
   Oases are green areas in deserts where water sources like springs or wells allow plants and trees to grow.
5. Name one hot desert and one cold desert mentioned in the text.
   The Thar is a hot desert, and Ladakh is a cold desert.

Paragraph

Some deserts have almost no water at all, making survival extremely difficult. Strong winds often blow in such areas, creating and shifting sand dunes, which are mounds of sand that constantly move across the desert. These shifting sands make it hard for plants to grow. Despite these harsh conditions, deserts remain unique ecosystems where some forms of life have adapted to thrive.

Questions and Answers:

1. What are sand dunes?
   Sand dunes are mounds of sand created and moved by strong winds in the desert.
2. Why is it difficult for plants to grow on sand dunes?
   Because the sand is dry and constantly shifting.
3. What makes survival difficult in some deserts?
   The almost total lack of water.
4. What role do winds play in deserts?
   Winds raise and deposit sand, forming sand dunes.
5. Can life exist in deserts despite harsh conditions?
   Yes, some forms of life have adapted to thrive in deserts.

Paragraph 2:

All living things need water to survive, but desert plants and animals have adapted to need less water than most. Camels, known as the “ship of the desert,” can drink large amounts of water at once and survive without water for days because they sweat very little, allowing them to retain water. They can tolerate high body temperatures without sweating. Smaller desert animals rarely drink water; instead, they burrow underground during the day to stay cool and come out at night. They obtain moisture from their diet, such as meat or plant juices, which provide the water they need.

Questions and Answers:

1. Why is the camel called the “ship of the desert”?
   Because it can survive in the desert for days without water.
2. Why do camels sweat very little?
   They can tolerate high body temperatures, reducing the need to sweat.
3. How do smaller desert animals stay cool during the day?
   They burrow underground to avoid the heat.
4. How do some desert animals get water without drinking it?
   They obtain water from the moisture in meat or plant juices.
5. What is the key adaptation of desert animals to survive?
   The ability to need less water and stay cool.

Paragraph

Desert plants have also adapted to survive with minimal water. Cactus plants store water in their thick stems, and their shallow roots absorb moisture quickly from light rains. Deserts are known for their dryness and extreme temperature changes. Unlike humid climates, where moisture in the air acts as a blanket to regulate temperature, deserts heat up rapidly during the day and cool off quickly at night. Deserts, like forests and oceans, are an essential part of nature’s balance and should not be dismissed as useless just because they are hot and dry.

Questions and Answers:

1. How do cactus plants store water?
   They store water in their thick stems.
2. Why are cactus roots close to the surface of the ground?
   To quickly absorb moisture from light rains.
3. Why do deserts heat up quickly during the day?
   Because there is no moisture in the air to act as a protective blanket.
4. How do temperatures in deserts change from day to night?
   Deserts heat up rapidly during the day and cool off quickly at night.
5. Why are deserts important despite being hot and dry?
   They are a vital part of nature’s balance, like forests and oceans.

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