Climate and Adaptations of Animals to Climate
Q33. What are the characteristics of the Polar Regions?
Ans. The Polar Regions
present an extreme climate. These regions are covered with snow and it is very
cold for most part of the year. For six months the sun does not set at the
poles while for the other six months the sun does not rise. In winters, the
temperature can be as low as –37°C. Animals living there have adapted
to these severe conditions.
Q34. How weather is a complex phenomenon?
Ans. The weather is a
complex phenomenon as it can vary over very short periods of time. It can
happen sometimes that it is sunny in the morning, but suddenly clouds appear from
nowhere and it starts raining heavily. Or, a heavy rain may vanish in a matter
of minutes and give way to bright sunshine. Since weather is such a complex
phenomenon, it is not easy to predict.
Q35. What are the adaptations of penguins?
Ans. Adaptations of
It is white and merges well with the white
background. It also has a thick skin and a lot of fat to protect it from cold.
Penguins huddled together. This they do to
Penguins are also good swimmers. Their
bodies are streamlined and their feet have webs, making them good swimmers.
Q36. All changes in the weather are caused by the sun. Explain
Ans. All changes in the
weather are caused by the sun. The sun is a huge sphere of hot gases at a very
high temperature. The distance of the sun from us is very large. Even then the
energy sent out by the sun is so huge that it is the source of all heat and
light on the earth. So, the sun is the primary source of energy that causes
changes in the weather. Energy absorbed and reflected by the earth’s surface,
oceans and the atmosphere play important roles in determining the weather at
Q37. How tropical rainforest supports wide variety of plants and
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. Days and nights
are almost equal in length throughout the year. These regions get plenty of
rainfall. 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.
Q38. How do elephant living in the tropical rainforest adapt
It has adapted to the conditions of rainforests in many remarkable ways. Some
of the adaptations are as follows:
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
Moreover, its tusks are modified teeth.
These can tear the bark of trees that elephant loves to eat.
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.
Q39. Explain, with examples, why we find animals of certain kind
living in particular climatic conditions?
are adapted to survive in the conditions in which they live. Animals living in
very cold and hot climate must possess special features to protect themselves
against the extreme cold or heat. Features and habits that help animals to
adapt to their surroundings are a result of the process of evolution. For
example, polar bears are adapted for Polar Regions. Polar bears have white fur
so that they are not easily visible in the snowy white background. It protects
them from their predators and also helps them in catching their
prey. To protect them from extreme cold, they have two thick layers of fur.
With these adaptations it will not be possible for polar bears to survive in
tropical region where it is hot.
Q40. Write a short note on Beard ape.
The lion-tailed macaque (also called Beard
ape) lives in the rainforests of Western Ghats.
Its most outstanding feature is the
silver-white mane, which surrounds the head from the cheeks down to its chin.
It is a good climber and spends a major
part of its life on the tree.
It feeds mainly on fruits. It also eats
seeds, young leaves, stems, flowers and buds.
This beard ape also searches for insects
under the bark of the trees.
Since it is able to get sufficient food on
the trees, it rarely comes down on the ground.