NCERT Solutions for Class 7 Science Chapter 7 Weather, Climate, And Adaptations Of Animals To Climate are provided here with simple step-by-step explanations. These solutions for Weather, Climate, And Adaptations Of Animals To Climate are extremely popular among Class 7 students for Science Weather, Climate, And Adaptations Of Animals To Climate Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the NCERT Book of Class 7 Science Chapter 7 are provided here for you for free. You will also love the ad-free experience on Meritnation’s NCERT Solutions. All NCERT Solutions for class Class 7 Science are prepared by experts and are 100% accurate.
Page No 38:
Question 1:
The maximum and minimum temperature displayed daily in the weather bulletin refer to the –
(a) highest day temperature and lowest night temperature of the day.
(b) highest day temperature and highest night temperature of the month.
(c) temperature recorded at 12 noon and at mid night (00.00 hrs).
(d) average highest temperature of day and average lowest temperature of night.
Answer:
The maximum and minimum temperature displayed daily in the weather bulletin refers to the highest day temperature and lowest night temperature of the day.
Hence, the correct answer is option (a).
Page No 38:
Question 2:
Out of the given definitions, which is the most appropriate definition of climate?
(a) Changes in weather conditions in a year.
(b) Average weather pattern of many years.
(c) Change in weather pattern in a few years.
(d) Weather conditions during summer.
Answer:
Climate is defined as the average weather pattern taken over a long period of time.
Hence, the correct answer is option (b).
Page No 38:
Question 3:
Which of the following briefly describes the desert climate?
(a) Hot and humid
(b) Dry and humid
(c) Hot and dry
(d) Hot and wet
Answer:
In deserts places like Rajasthan, the temperature is high during most parts of the year. But the temperature is low during the winter season and it only lasts for few months and this region receives very little climate. The climate condition in deserts will be hot and dry.
Hence, the correct answer is option (c).
Page No 38:
Question 4:
Paheli went to a wildlife sanctuary where she saw dense vegetation of trees, shrubs, herbs and also a variety of animals like monkeys, birds, elephants, snakes, frogs, etc. The most likely location of this sanctuary is in the –
(a) temperate region
(b) tropical region
(c) polar region
(d) coastal region
Answer:
The tropical rainforest regions support a wide variety of plants and animals because of continuous warmth and rain.
Hence, the correct answer is option (b).
Page No 39:
Question 5:
Given below are some adaptive features of animals:
(i) Layer of fat under the skin
(ii) Long, curved and sharp claws
(iii) Slippery body
(iv) Thick white fur
Which of them are the adaptive features of a polar bear?
(a) (i) only (b) (i) and (ii) only
(c) (i), (ii) and (iii) only (d) (i), (ii), and (iv) only
Answer:
Animals living in polar regions like polar bears and penguins have some adaptive features to survive in extremely cold climate conditions. In polar bears, a thick layer of fur and a layer of fat present under the skin to protect them from extreme cold in polar regions. They have long, curved and sharp claws that help to walk with ease in snow.
Hence, the correct answer is option (d).
Page No 39:
Question 6:
Which of the following statement is incorrect for penguins?
(a) They huddle together
(b) They cannot swim
(c) They have webbed feet
(d) They have streamlined body
Answer:
Penguins are good swimmers as their bodies are streamlines and their feet have webs. This makes them good swimmer.
Hence, the correct answer is option (b).
Page No 39:
Question 7:
Read the following environmental conditions of tropical rain forests.
(i) Hot and humid climate
(ii) Unequal lengths of day and night
(iii) Abundant rain fall
(iv) Abundant light and moisture
Identify the conditions from the above list that are responsible for the presence of large number of plants and animals in tropical rain forests.
(a) (i) and (ii) (b) (i) and (iii)
(c) (i), (iii) and (iv) (d) (ii) and (iv)
Answer:
The temperature in the tropical rainforest is hot because it is located around the equator. Even the temperature in the coldest month is generally higher than 15 C. The temperature may cross 40 C during hot summers. Days and nights are equal in length throughout the year. These regions get plenty of rainfall. Due to continuous warmth and rain, this region supports a wide variety of plants and animals.
Hence, the correct answer is option (c).
Page No 39:
Question 8:
The coldest region on earth is the –
(a) polar region
(b) tropical region
(c) temperate region
(d) coastal region
Answer:
The coldest region on earth is the polar region. Polar regions are covered with snow and it is very cold for the most part of the year. In this region, the sun does not set at the poles for six months and for the other six months the sun does not rise. The temperature can be as low as 37 C.
Hence, the correct answer is option (a).
Page No 39:
Question 9:
Choose the odd one from the following options :
(a) Thick layer of fat under the skin
(b) White fur
(c) Long grasping tail
(d) Wide and large feet with sharp claws
Answer:
Long grasping tail is a adaptive feature of tropical rainforest. Monkeys live on trees have long tail for grasping branches.
Hence, the correct answer is option (c).
Page No 40:
Question 10:
“A fish dies when taken out of water whereas a wall lizard will die if kept under water.” Mention the term used to describe such abilities that allow fish and lizard to survive in their respective habitats.
Answer:
The term adaptation is used to describe the abilities of fish and lizards in their respective habitats. Fishes are adapted to survive in water and lizards are adapted to survive on lands.
Page No 40:
Question 11:
Give one example of an animal that can live both in water and on land.
Answer:
The frog can survive both in water and on lands because they are adapted to live on both water and land.
Page No 40:
Question 12:
State whether the following statements are True or False. Correct the false statements.
(a) It is easy to predict weather rather than climate.
(b) Since very few prey are available, polar bear does not need to have strong sense of smell.
(c) Penguins stick together to fight the cold polar climate.
(d) Tropical rain forests are cool and humid throughout the year because of heavy rains all the time.
Answer:
(a) False. It is easy to predict climate rather than the weather.
(b) False. Polar bears have a strong sense of smell so that they can catch their prey for food.
(c) True.
(d) False. Tropical rainforests are hot and humid throughout the year as they are located near the equator.
Page No 40:
Question 13:
Unscramble the following words using the hints given against them.
(i) MATLICE (Hint: weather pattern in a region over a period of time)
(ii) AROPL (Hint: coolest region on earth)
(iii) TREHMEOMRET (Hint: used to measure temperature)
(iv) UHIDYTMI (Hint: feature of weather)
Answer:
(i) Climate
(ii) Polar
(iii) Thermometer
(iv) Humidity
Page No 40:
Question 14:
Match the animals mentioned in Column I with their characteristic features given in Column II.
| Column I | Column II |
| (a) Red eyed frog | (i) Very sensitive hearing |
| (b) Penguin | (ii) Streamlined body |
| (c) Tiger | (iii) Silver - white mane |
| (d) Lion - tailed macaque | (iv) Sticky pads on feet |
Answer:
(a)-(iv), a Red-eyed frog has developed sticky pads on its feet to help it climb trees on which it lives.
(b)-(ii), the bodies of penguins are streamlined and their feet have webs that make them good swimmers.
(c)-(i), tigers have very sensitive hearing that helps them to camouflage by blending with the surroundings.
(d)-(iii), lion-tailed macaque lived in the rainforests of western Ghats and they have a silver-white mane that surrounds the head from the cheeks down to its chin.
Page No 40:
Question 15:
Why is it difficult to predict the weather of a place while it is easy to predict its climate?
Answer:
It is difficult to predict the weather of a place while it is easy to predict its climate because the weather can vary with a short period of time whereas climate is the average weather pattern taken over a long time.
Page No 41:
Question 16:
Name two animals each that live in Polar region and Tropical rain forests.
Answer:
Polar bears and penguins are the two animals that live in the polar region.
Monkey and lion are the two animals that live in the tropical rain forest.
Page No 41:
Question 17:
Write two common adaptive features of a polar bear which help in keeping it warm.
Answer:
The two adaptive features of the polar bears are :
(i) They have two thick layers of fur.
(ii) They also have a layer of fat under their skin.
Page No 41:
Question 18:
Mention two adaptive features of penguin that help it in swimming.
Answer:
Penguins are good swimmers as their bodies are streamlines and their feets have webs.
Page No 41:
Question 19:
Differentiate between:
(i) Weather and climate
(ii) Humidity and rainfall
(iii) Climates of polar region and tropical rain forest
(iv) Maximum and minimum temperatures of the day
Answer:
(i)
Weather Climate
The day to day condition of the atmosphere The average weather pattern taken over a long time.
at a place with respect to temperature, humidity,
rainfall, wind speed, etc.
(ii)
Humidity Rainfall
It indicates the wetness of a place due to It is the drops of water that falls from the cloud on the ground.
presence of some amount of moisture in the atmosphere.
(iii)
Climates of polar region Climates of tropical rain forest
Polar regions are covered with snow and it is very cold. They have hot and humid climate as it is located near equator.
(iv)
Maximum temperature of the day Minimum temperature of the day
The highest temperature occurs in the day time. The lowest temperature occurs in the night.
Page No 41:
Question 20:
Fill in the blanks in the paragraph given below.
Weather of a place is the day-to-day condition of the _____(a)_____ with respect to ____(b)____, _____(c)______, ____(d)______, _____(e)______ at that place, while climate is the _____(f)______ weather pattern taken over many years.
Answer:
(a) atmosphere
(b) temperature
(c) humidity
(d) rainfall
(e) windspeed
(f) average
Page No 41:
Question 21:
Given below is a list of climatic conditions and some examples of animals. Read them carefully and place the items in the relevant columns as shown.
Penguin, Gorrila, Monkey, Reindeer, Assam, Greenland, Sun does not rise for six months, Hot and humid climate, Days and nights are almost equal in length throughout the year, Winter temperature around –37°C, Western Ghats
| Tropical Rain Forest | Polar Region |
| Hot and humid climate | Penguin |
Answer:
| Tropical Rain Forest | Polar Region |
| Hot and humid climate | Penguin |
| Gorilla | Reindeer |
| Western Ghat | Sun does not rise for six months |
| Assam | Greenland |
| Monkey | Winter temperature around -37 °C |
| Days and nights are almost equal in length throughout the year. |
|
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