Solution of Chapter 7. Weather, Climate and Adaptations of Animals to Climate (NCERT Science Book)

Name the elements that determine the weather of a place.

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

Fill in the blanks:

a) The average weather taken over a long time is called ___________.

b) The place receives very less rainfall and the temperature is high throughout the year, the climate of that place will be ____________ and __________.

c) The two regions of the earth with extreme climatic conditions are _____________ and _________.

Indicate the type of climate of the following areas:

(a) Jammu and Kashmir: ___________

(b) Kerala: ____________

(c) Rajasthan: ___________

(d) North-east India: _____________

Which of the two changes frequently, weather or climate?

Following are some of the characteristics of animals:

(i) Diets heavy on fruits

(ii) White far

(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 characteristics 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?

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

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

How do elephants living in the tropical rainforest adapt itself?

A carnivore which stripes on its body moves very fast while catching its prey. It is likely to be found in

Which features adapt polar bears to live in extremely cold climate ?

Which option best describes a tropical region?

Collect weather reports of seven successive days in the winter months (preferably December). Collect similar reports for summer months (preferably June). Now prepare a table for sunrise and sunset time as shown:

Table

[Note : The timings filled here are for the year 2009. Students may fill this with the latest available data.]

Try to answer the following questions:

(i) Is there any difference in the time of sunrise during summer and winter?

(ii) When do you find that sun rises earlier?

(iii) Do you also find that any difference in the time of sunset during the month of June and December?

(iv) When are the days longer?

(v) When are the nights longer?

(vi) Why are the days sometimes longer and sometimes shorter?

(vii) Plot the length of the day against the days chosen in June and December.

Collect information about the Indian Meteorological Department.

Write a brief report about the things this department does.