Test: Life in the Desert - Class 7 MCQ

• Deserts are places that are famous for being very dry. This means they get very little rain.
• In deserts, you might see lots of sand and very few plants.
• People and animals living in deserts have to find special ways to get water because there isn't much rain to drink.
• So, deserts are known for their dryness and the special plants and animals that can survive there.

Precipitation means any form of water, such as rain or snow, that falls from the sky. In deserts, the amount of precipitation is very low, usually less than 25 cm, making the climate extremely dry.

• Deserts can be of two types: Hot deserts, which are very sunny and dry, and Cold deserts, which are very cold and snowy.
• Hot deserts have scorching temperatures.
• Cold deserts have freezing temperatures.
• It's important to know about these different types of deserts to understand how living things adapt to survive in such harsh environments.

Hot deserts like the Sahara, Kalahari, Arabian Desert, Thar Desert, and Great Victoria Desert are found in tropical regions with very high temperatures. The Sahara is one of the largest hot deserts in the world, known for its vast stretches of sand and extreme heat.

The Sahara desert is famous for being the largest hot desert in the world. This means it is a very big desert, and it is also very hot there. The Sahara has lots of sand, rocks, and very little water. It's so big that it is more than two and a half times larger than the country of India!

Plains in the Sahara desert covered with sand and large sand dunes are called 'ergs'. These are vast areas where you find a lot of sand and big sand dunes. It's like a huge sandy playground in the desert! So, when you hear about ergs, think about lots of sand and big dunes in the Sahara.

Hamadas are elevated areas in the desert with rocks and no sand on top. They are like flat mountains that have their sand taken away. So, when you see a question about a place in the desert without sand, the answer is "Hamadas."

Ladakh is called the 'Land of the Passes' because it has many high passes in the region. Passes are like pathways through mountains that people and animals can travel through.

Ladakh is a cold desert situated at high altitudes in the northern part of India. This means it is located in the topmost area of the country, where it is very cold and dry with high mountains.

• These trees grow near the rivers and bring beauty to the landscape.
• Poplar trees have leaves that rustle in the wind.
• Willow trees have long, slender branches that sway gracefully.
• So, if you visit Ladakh, look out for these lovely trees in the valleys!

• The soldiers in the Kargil War teach us that it's important to never give up, even when things are very hard.
• They showed us that with bravery and determination, we can overcome any challenge we face.
• So, it's essential to keep trying and not lose hope, just like these brave soldiers did in the war.

Soldiers displayed great bravery during the Kargil War, which means they were very brave and courageous. They were not scared and faced challenges with confidence and strength.

Deserts are areas where there is very little rain. They are usually very dry and hot during the day. Some deserts can also be cold. People and animals living in deserts have to find ways to get water and survive in these harsh conditions.

Cold deserts are known for their extreme temperature changes. This means that during the year, these deserts can get very hot in summer and extremely cold in winter. So, in cold deserts, the weather can change a lot, making it tough for plants and animals to survive.

Living in Ladakh, people face very hot summers and extremely cold winters. They have adapted to survive these harsh conditions.

Tropical rainforests are not found in the Sahara Desert. The Sahara is known for its rocky plateaus, sand dunes, mountain ranges, oases, and desert plains. These features make up the diverse landscape of the desert. So, the correct answer is Option C: Tropical rainforests.

The Sahara desert is bordered by the Mediterranean Sea and the Atlas Mountains to the north. The Atlas Mountains are a range of mountains in North Africa.

• Plains with sand and gravel cover 70% of the Sahara desert. These plains are known as Regs. They are flat areas made up of sand and gravel.
• Imagine walking on tiny pieces of rocks and sand all spread out like a big carpet. That's what most of the Sahara looks like! It's not bumpy like mountains, not filled with trees like forests, and definitely not wet like swamps. It's mostly smooth with rocks and sand, making it hard for plants to grow there.

Hamadas are elevated rock-covered plateaus where sand has been removed. This means that these plateaus are mostly rocky and do not have much sand covering them.

People in the Sahara wear heavy loose robes to protect themselves from the strong sun, dusty storms, and hot winds. These robes help them stay safe and comfortable in the desert heat.

The Sahara desert has a lot of valuable things under the ground like petroleum and uranium. These are called minerals. Minerals are important for making things like cars and buildings.

• Ladakh is the name of the cold desert in the northern part of India. It is a very cold and dry place with lots of mountains and not much rain.
• People and animals living there have adapted to the cold weather.
• The name "Ladakh" means 'land of the passes' because there are many mountain passes in the region.
• It's a unique place with beautiful landscapes and unique wildlife.