Chapter Review:

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• Rainfall is measured by an instrument called the rain gauge.
• 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 average weather pattern taken over a long time, say 25 years, is called the climate of the place.
• The times of sunrise and sunset also change during the year.
• The weather is generally not the same on any two days and week after week.

Exercise 

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1. Name the elements that determine the weather of a place.

Answer:

Temperature, rainfall, humidity, windspeed, etc.

2. When are the maximum and minimum temperature likely to occur during the day?

Answer:

The maximum temperature of the day occurs generally in the afternoon while the minimum temperature occurs generally 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) climate  (ii) hot,dry (iii) pole, desert.

4. Indicate the type of climate of the following areas:

(a) Jammu and Kashmir: _________________________________

(b) Kerala: ____________________________________________

(c) Rajasthan: __________________________________________

(d) North-east India: _____________________________________

Answer:

(i) cold and wet (ii) hot and wet (iii) hot and dry (iv) hot and wet. 

5. Which of the two changes frequently, weather or climate?

Answer:

Weather.

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) Tropical (ii) Polar (iii) Both (iv) Both (v) Tropical (vi) Polar (vii) Polar (viii) Tropical (ix) Tropical (x) Tropical. 

7. The tropical rainforest has a large population of animals. Explain why it is so.

Answer:

Because of continuous warmth and raun, this region supports wide variety of plants and animals.

8. Explain, with examples, why we find animals of certain kind living in particular climatic conditions.

Answer:

9. How do elephant living in the tropical rainforest adapt itself.

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.  

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.

Additional Questions With Solutions

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Ques. – What is rain gauge?
Ans. – Rainfall is measured by an instrument called the rain gauge. It is basically a measuring cylinder with a funnel on top to collect rainwater.

Ques. – What is weather?
Ans. – 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.

Ques. – Which factors are called the elements of the weather?
Ans. – The temperature, humidity, and other factors are called the elements of the weather.

Ques. – Which of the two changes frequently, weather or climate?
Ans. – The weather changes very frequently.

Ques. – when during the day we have the maximum temperature and when the minimum?
Ans. – The maximum temperature of the day occurs generally in the afternoon while the minimum temperature occurs generally in the early morning.

Ques. – What is climate?
Ans. – The average weather pattern taken over a long time, say 25 years, is called the climate of the place.

Ques. – The tropical rainforest has a large population of animals. Explain why it is so.
Ans. – The tropical rainforest has a large population of animals because it has covered a large area of the earth. All the living organisms of this area are adapted such that they eat different kinds of food to overcome the competition for food and shelter.

Ques. – Explain, with examples, why we find animals of certain kind living in particular climatic conditions.
Ans. – We find animals of certain kind living in particular climatic conditions, this is such that some animals adept themselves according to their habitat. Ex- Camels in desert, polar bears in polar region.

Ques. – By Which are all the changes in the weather are driven?
Ans. – All the changes in the weather are driven by the sun.

Ques. – Name two such regions of the Earth which have severe climatic conditions.
Ans. – The tropical and the Polar Regions.

Ques. – Name an another mean to escape the harsh, cold conditions to the animals.
Ans. – Migrations

Ques. – What is humidity?
Ans. – Presence of amount of water vapour in air is called humidity.

Ques. – The tropical rainforest has a large population of animals. Explain why it is so?

Ans. - Because of continuous warmth and rain, this region supports wide variety of animals and plants.

Additional Questions With Solutions

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Que – What is rain gauge?

Ans– Rainfall is measured by an instrument called the rain gauge. It is basically a measuring cylinder with a funnel on top to collect rainwater.

Que – What is weather?

Ans – 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.

Que – Which factors are called the elements of the weather?

Ans – The temperature, humidity, and other factors are called the elements of the weather.

Que – Which of the two changes frequently, weather or climate?

Ans – The weather changes very frequently.

Que – when during the day we have the maximum temperature and when the minimum?

Ans – The maximum temperature of the day occurs generally in the afternoon while the minimum temperature occurs generally in the early morning.

Que – What is climate?
Ans – The average weather pattern taken over a long time, say 25 years, is called the climate of the place.

Que – The tropical rainforest has a large population of animals. Explain why it is so.

Ans – The tropical rainforest has a large population of animals because it has covered a large area of the earth. All the living organisms of this area are adapted such that they eat different kinds of food to overcome the competition for food and shelter.

Que – Explain, with examples, why we find animals of certain kind living in particular climatic conditions.

Ans – We find animals of certain kind living in particular climatic conditions, this is such that some animals adept themselves according to their habitat. Ex- Camels in desert, polar bears in polar region.

Que – By Which are all the changes in the weather are driven.

Ans – All the changes in the weather are driven by the sun.

Que – Name two such regions of the Earth which have severe climatic conditions.

Ans – The tropical and the Polar Regions.

Que – Name an another mean to escape the harsh, cold conditions to the animals.

Ans – Migrations

Que – What is humidity?

Ans – Presence of amount of water vapour in air is called humidity.

Que – The tropical rainforest has a large population of animals. Explain why it is so?

Ans - Because of continuous warmth and rain, this region supports wide variety of animals and plants.