NCERT Solutions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate
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NCERT Solutions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate
These NCERT Solutions for Science are helpful resources that can help you not only cover the entire syllabus but also provide in depth analysis of the topics. NCERT Textbook will provide you with a lot of interesting topics thus these NCERT Solutions for Class 7 Science for Chapter 7 will be useful in understanding in depth concepts well. Students can cross check their answers and also whether they learned it properly or not.
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Page No: 77
1. Name the elements that determine the weather of a place.
Answer
The elements that determine the weather of a place are:
(i) Temperature
(ii) Humidity
(iii) Rainfall
(iv) Wind speed
2. When are the maximum and minimum temperatures likely to occur during the day?
Answer
The maximum temperature during the day occurs at the afternoon while the minimum temperature occurs in the early morning.
3. Fill in the blanks:
(i) The average weather taken over a long time is called ___________.
(ii) A place receives very little rainfall and the temperature is high throughout the year, the climate of that place will be ___________ and ___________ .
(iii) The two regions of the earth with extreme climatic conditions are ___________ and __________.
Answer
(i) The average weather taken over a long time is called climate.
(ii) A place receives very little rainfall and the temperature is high throughout the year, the climate of that place will be hot and dry.
(iii) The two regions of the earth with extreme climatic conditions are the polar region and the desert.
Page No: 78
4. Indicate the type of climate of the following areas:
(a) Jammu and Kashmir: _________________________________
(b) Kerala: ____________________________________________
(c) Rajasthan: __________________________________________
(d) North-east India: _____________________________________
Answer
a) Jammu and Kashmir → Moderately hot and wet
(b) Kerala → Hot and wet
(c) Rajasthan → Hot and dry
(d) North-east India → Wet
5. Which of the two changes frequently, weather or climate?
Answer
Weather changes frequently.
6. Following are some of the characteristics of animals:
(i) Diets heavy on fruits
(ii) White fur
(iii) Need to migrate
(iv) Loud voice
(v) Sticky pads on feet
(vi) Layer of fat under skin
(vii) Wide and large paws
(viii) Bright colours
(ix) Strong tails
(x) Long and large beak
For each characteristic indicate whether it is adaptation for tropical rainforests or polar regions. Do you think that some of these characteristics can be adapted for both regions?
Answer
(i) Diets heavy on fruits → Tropical rainforests
(ii) White fur → Polar regions
(iii) Need to migrate → Polar regions
(iv) Loud voice → Tropical rainforests
(v) Sticky pads on feet → Tropical rainforests
(vi) Layer of fat under skin → Polar regions
(vii) Wide and large paws → Polar regions
(viii) Bright colours → Tropical rainforests
(ix) Strong tails → Tropical rainforests
(x) Long and large beak → Tropical rainforests
No, these characteristics can't be adapted for both regions as they are specific.
7. The tropical rainforest has a large population of animals. Explain why it is so.
Answer
The tropical rainforest has a large population of animals due to favourable climatic conditions and easy availability of different kinds of foods. The regions is hot and humid with ample rainfall which supports the growth of animals and plants.
8. Explain, with examples, why we find animals of certain kind living in particular climatic conditions.
Answer
We find animals of certain kind living in particular climatic conditions because every living organisms are adapted to live in the particular habitat. Every living things develop their feature according to the adaption area.
For example, penguins have thick skin to protect themselves from cold and webbed feet to swim in water. It can't able to survive the hot climate of tropical regions as they developed thick skin for the protection from cold not from the hot and humid temperature.
9. How do elephant living in the tropical rainforest adapt itself?
Answer
Elephant living in the tropical rainforest are well adapted itself to this region.
(i) They have strong sense of smell and uses its trunk for smell.and to hold food.
(ii) They also use their trunk to hold food.
(iii) They have long ears which help them in keeping cool in hot and humid climate.
(iv) Long ears help them in hearing very soft sound.
(v) They have thick padded feet which help them in moving silently.
Choose the correct option which answers the following question:
10. A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in
(i) polar regions
(ii) deserts
(iii) oceans
(iv) tropical rainforests
Answer
► (iv) tropical rainforests
11. Which features adapt polar bears to live in extremely cold climate?
(i) A white fur, fat below skin, keen sense of smell.
(ii) Thin skin, large eyes, a white fur.
(iii) A long tail, strong claws, white large paws.
(iv) White body, paws for swimming, gills for respiration.
Answer
► (i) A white fur, fat below skin, keen sense of smell.
Page No: 79
12. Which option best describes a tropical region?
(i) hot and humid
(ii) moderate temperature, heavy rainfall
(iii) cold and humid
(iv) hot and dry
Answer
► (i) hot and humid
Go Back To NCERT Solutions for Class 7 Science
NCERT Solutions for Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate
Detailed explanation provided under each NCERT solutions for Class 7 Science will help in understanding the concepts better. It will improve your awareness skills sharply and you can easily memorize more things precisely. Through these NCERT Solutions, students should not waste time and adopt a strategy that helps them operate and learn at maximum efficiency.
Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate NCERT Questions and Answers - Topics
• Weather
• Climate
• Climate And Adaptation
→ The polar regions
→ The tropical rainforests
Class 7 Science Chapter 7 Weather, Climate and Adaptations of Animals to Climate NCERT Questions and Answers - Notes
• The day-to-day condition of the atmosphere at a place with respect to the temperature, humidity, rainfall, wind-speed, etc., is called the weather at that place.
→ The temperature, humidity, and other factors are called the elements of the weather. The weather of a place changes day after day and week after week.
→ The maximum temperature of the day occurs generally in the afternoon while the minimum temperature occurs generally in the early morning.
• The average weather pattern taken over a long time, say 25 years, is called the climate of the place.
→ Climate has a profound effect on all living organisms. Features and habits that help animals to adapt to their surroundings are a result of the process of evolution.
• The polar regions are situated near the poles, i.e., north pole and south pole. Some well-known countries that belong to the polar regions are Canada, Greenland, Iceland, Norway, Sweden,
Finland, Alaska in U.S.A. and Siberian region of Russia.
• Examples of some countries where the tropical rainforests are found are India, Malaysia, Indonesia, Brazil, Republic of Congo, Kenya, Uganda, and Nigeria.
• The polar regions present an extreme climate. These regions are covered with snow and it is very cold for most part of the year.
→ Polar bears have white fur so that they are not easily visible in the snowy white background. It protects them from their predators. It also helps them in catching their prey.
→ Another well-known animal living in the polar regions is the penguin. It is also white and merges well with the white background. It also has a thick skin and a lot of fat to protect it from cold.
→ Other animals living in the polar regions are many types of fishes, musk oxen, reindeers, foxes, seals, whales, and birds.
• The tropical region has generally a hot climate because of its location around the equator. Even in the coldest month the temperature is generally higher than about 15°C. During hot summers, the temperature may cross 40°C.
→ Because of continuous warmth and rain, this region supports wide variety of plants and animals. The major types of animals living in the rainforests are monkeys, apes, gorillas, tigers, elephants, leopards, lizards, snakes, birds and insects.
Chapter 7 Weather, Climate and Adaptations of Animals to Climate Class 7 Science Questions and Answers - MCQ Questions with answers
1. Seal is found in
(a) Tropical region
(b) Polar region
(c) Mountain region
(d) Temperate region
► (b) Polar region
2. If there is a heavy rainfall on most of the days at a place, the climate of that place will be
(a) Hot and wet
(b) Cold and wet
(c) Hot and humid
(d) Cold and humid
► (a) Hot and wet
3. The special features and habits that help an animal survive in its environment are known as _______
(a) evolutions
(b) adaptations
(c) polymorphisms
(d) hibernation
► (b) adaptations
4. Birds are adapted to fly because of
(a) Streamlined body
(b) Light bones
(c) Feathers and wings
(d) All of the above
► (d) All of the above
5. The use of any combination of materials, coloration for riding of an animals is called
(a) Camouflage adaptation
(b) Behavioral adaptation
(c) Physiological adaptation
(d) Structural adaptation
► (b) Behavioral adaptation
6. In India tropical rainforests are located in
(a) Western ghats
(b) Northern ghats
(c) Eastern ghats
(d) None of the above
► (a) Western ghats
7. Adaptation is:
(a) Biotic and abiotic component of the environment.
(b) Adjustment to environment
(c) Living part of the environment
(d) Impurities present in the environment
► (b) Adjustment to environment
8. Wet and dry bulb hygrometer is an instrument which measures
(a) Rainfall in a given period of time.
(b) Predicts the rainfall.
(c) Maximum and minimum temperature.
(d) The amount of humidity in the atmosphere.
► (d) The amount of humidity in the atmosphere.
9. To mix with surroundings, tigers have
(a) Thick pads on their feet
(b) Stripes in its body
(c) Large teeth
(d) None of the above
► (b) Stripes in its body
10. Which of the following does not live in the polar region?
(a) Penguin
(b) Polar bear
(c) Camel
(d) Reindeer
► (c) Camel
You will get step by step and to the points answers of every question given inside the textbook. Chapter 7 NCERT Questions and Answers can be used to enrich knowledge and make lessons for learners more exciting. It will be useful in expanding student's horizon as it cover variety of questions.