Weather | Climate and Adaptations of Animals to Climate
Q.1.Name the elements that determine
the weather of a place.
Ans. The temperature, humidity, rainfall, wind-speed, etc. are
called the elements that determine the weather of a place.
Q.2. When are the maximum and minimum
temperature likely to occur during the day?
Ans.The maximum temperature of the day occurs generally in the
afternoon and the minimum temperature occurs in the early morning.
Q.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 ____________
Ans. climate of the place (ii) hot, dry (iii) polar, tropical
regions
Q.4.Indicate the type of climate of
the following areas:
(a) Jammu and Kashmir:
(b) Kerala:,
(c) Rajasthan:
(d) North-east India:
Ans.(a) Jammu and Kashmir—moderately hot and moderately wet
climate.
(b) Kerala—very hot and wet climate.
(c) Rajasthan—hot and dry climate.
(d) North-east India—The north eastern India receives rain for a major part of
the year, hence wet climate.
Q.5.Which of the two changes
frequently, weather or climate?
Ans.Weather
Q.6.Followings 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?
Ans:
Q.7. The tropical rainforests has a
large population of animals. Explain why it is so.
Ans. Because of continuous warmth and rain, the tropical
region supports an enormous number and a wide variety of animals
Q.8.Explain with examples, why we
find animals of certain kind living in particular climatic conditions.
Ans. Animals are adapted to survive in the conditions in which
they live. Features and habits which help them to adapt to their surroundings
are the result of evolution. So, to survive in a particular type of climate the
animals must have certain adapted features. This is the reason we find animals
of certain kind living in particular climatic conditions. For example, animals
in the polar region are adapted to the extremely cold climate. They have
special characteristics, such as white fur, strong sense of smell, a layer of fat
under the skin, wide and large paws for swimming and walking in snow etc
Q.9. How do elephants living in the
tropical rainforests adapt themselves?
Ans. The elephant has adapted to the conditions of rainforest
in many remarkable ways. It has a trunk that it uses as a nose because of this
it has a strong sense of smell. The trunk is also used by it for picking up
food. Its tusks are modified teeth. These can tear the bark of trees that an
elephant loves to eat. So, the elephant is able to handle the competition for
food very 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* humid climate of
the rainforest.
Q.10.Choose the correct option which
answers the following question:
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
Ans. (iv) tropical rainforests
Q.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.
Ans.(iv) A white fur, fat below skin, keen sense of smell.
Q.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
Ans.(i) Hot and humid
