Choose the correct option which answers the following question:
Which option best describes a tropical region?
(i) hot and humid
(ii) moderate temperature and heavy rainfall
(iii) cold and humid
(iv) hot and dry
(i) hot and humid
Choose the correct option which answers the following question:
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.
(i) A white fur, fat below skin, keen sense of smell.
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
(iv) tropical rainforests
How do elephant living in the tropical rainforest adapt itself?
The elephant possesses following characteristics which adapt it to survive in the tropical rainforest:
The tropical rainforest has a large population of animals. Explain why it is so.
Tropical rainforests have large population of animals because these areas have high temperature and plenty of rainfall throughout the year. Such continuous hot and humid conditions provide these areas with rich nutrient resources to support large variety and population of plants and animals.
Which of the two changes frequently, weather or climate?
Weather of a place changes on a day to day basis while climate remains unchanged for years. Thus, we can say that weather changes frequently and not the climate.
Indicate the type of climate of the following areas:
(a) Jammu and Kashmir: ____________
(b) Kerala: ______________________
(c) Rajasthan: _______________
(d) North-east India: _______________
(a) Jammu and Kashmir: moderately hot and wet for a part of the year
(b) Kerala: very hot and wet
(c) Rajasthan: hot and dry
(d) North-east India: wet
When are the maximum and minimum temperatures likely to occur during the day?
The maximum temperature of a day is likely to occur in the afternoon while minimum temperature of a day is likely to occur in the early morning.
Name the elements that determine the weather of a place.
Some important elements that determine the weather of a place are as follows:
Explain, with examples, why we find animals of certain kind living in particular climatic conditions.
Animals of certain kind are found living in a particular set of climatic conditions because they are well-adapted to survive and flourish in them. For instance, polar bear is found only in polar regions, as it is best adapted to cold climatic conditions. Its characteristics like, thick white fur, fat layer beneath the skin, large wide paws for walking on snow and swimming are all adaptations for the cold climate. On the other hand, monkeys have characteristics like, limbs to climb on trees, long tails, feeding on fruits, sharp hearing sense and eyesight. These characteristics make them suitable to live in hot and humid climatic conditions like those of tropical rainforests.
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?
The given characteristics can be classified as follows:
Each of the given characteristics is an adaption for a particular type of region. Therefore, none of the characteristics can be considered as an adaptation for both tropical rainforests and polar regions.
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 __________.
(i) Climate
(ii) dry, hot
(iii) tropical region, polar region
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