NCERT Class VII Science Solutions: Chapter 7-Weather, Climate and Adaptations of Animals to Climate Part 3

Doorsteptutor material for CBSE/Class-7 Science is prepared by world's top subject experts: fully solved questions with step-by-step explanation- practice your way to success.

Download PDF of This Page (Size: 793K)

Question 8:

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

Answer:

Animals are adapted to the conditions in which they live. These adaptations are the just because of long process of evolution. It would be difficult for them to survive if they are moved to region having different climate conditions than from their habitat. Consider the following examples:

  • A polar bear has thick layer of fat under their skin which acts heat insulator. It protects the bear from extreme cold climate of polar region. The polar bear cannot survive if it is moved to hot and dry desert region.

  • Monkeys have long tails for grasping branches adapted to live in tropical rain forests. It cannot survive in Polar Regions.

As showing in Image is a animals of certain kind living in p …

Animals of Certain Kind Living in Particular Climatic Condit …

Question 9:

How do elephant living in the tropical rainforest adapt itself?

Answer:

It has adapted to the conditions of rainforests in many remarkable ways. It uses its trunk as a nose because of which it has a strong sense of smell. The trunk is also used by it for picking up food. Moreover, its tusks are modified teeth. These can tear the bark of trees that elephant loves to eat. So, the elephant is able to handle the competition for food rather well. Large ears of the elephant help it to hear even very soft sounds. They also help the elephant to keep cool in the hot and humid climate of the rainforest.

As showing in Image is a result for rainforest elephant

Result for Rainforest Elephant

Question 10:

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

  1. polar regions

  2. deserts

  3. oceans

  4. tropical rainforests

Answer:

D. tropical rainforests

Question 11:

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

  1. A white fur, fat below skin, keen sense of smell.

  2. Thin skin, large eyes, a white fur.

  3. A long tail, strong claws, white large paws.

  4. White body, paws for swimming, gills for respiration.

Answer:

A. A white fur, fat below skin, keen sense of smell.

Image shows polar bear adaptation

Polar Bear Adaptation

Question 12:

Which option best describes a tropical region?

  1. hot and humid

  2. moderate temperature, heavy rainfall

  3. cold and humid

  4. hot and dry

Answer:

A. hot and humid

Developed by: