Q1. What are the
elements of weather?
Answer: The elements of weather are
humidity, temperature, rainfall, wind speed, etc.
Q2. What do you
understand by the climate of the place?
Answer: The average weather [pattern taken
over a long time is called climate of the place.
Q3. How are all changes
in the weather caused?
Answer: All changes in the weather are
caused by the sun.
Q4. Why does the
tropical region have a hot climate?
Answer: It has a hot climate because of its location
around the equator. Even in the coldest month the temperature is generally
higher than about 15degree C. During the hot summers, the temperature may cross 40 degrees.
Q5. What do you mean by
adaptations?
Answer: It is the phenomenon of acquiring
certain features and habits that ensure better survival in given surroundings.
Q6. Why are the animals
in the tropical rainforests exhibit variety of adaptations?
Answer: The climatic conditions in
rainforests are highly suitable for supporting an enormous number and variety
of animals. Since the number is large, there is intense competition for food
and shelter. Adaptations ensure survival.
Q7. What properties do
make polar bears and penguins good swimmers?
Answer: Their bodies are streamlined and
their feet have webs, making them good swimmers.
Q8. By which body part,
elephant can tear the bark of trees that it loves to eat?
Answer: With the help of modified teeth called tusk.
Q9. What do you
understand by weather of the place?
Answer: The day to day condition of the
atmosphere at a place with respect to the temperature, humidity, rainfall, wind
speed, etc, is called the weather at that place.
Q10. What is the
function of sticky pads in red eyed frog?
Answer: Sticky pads on feet help the red-eyed frog to
climb trees on which it lives.
Q11. Give reasons;-
a. Polar bears have 2
thick layers of fur.
Answer: 2 layers of fur are to keep the
body of polar bear warm in cold weather.
b. Penguins have a thick
skin and a lot of fats.
Answer: To protect them from cold.
c. Polar bears are white
in color.
Answer: The white fur is not easily visible in the
snowy white background and this helps them to hide away from predators and
prey.
d. Penguins can’t fly
but still have streamlined body.
Answer: Streamlined body enables the penguins to swim
in water.
Q12. Why do birds
migrate during winters?
Answer: Birds migrate to warmer places when winter
sets in, they come back after the winter is over.
Q13. Define habitat.
Answer: The natural living place of an organism.
Q14. Explain, with
examples, why we find animals of certain kind living in particular climatic
conditions.
Answer: Animals 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. For e.g.,
1. In Polar Regions, Polar bear- has two
thick layers of fur, white coloured fur, very strong sense of smell, long
curved and sharp claws
2. In tropical regions, many animals have
sensitive hearing, sharp eyesight, thick skin and a skin colour which helps
them to camouflage by blending with the surroundings. E.g. big cats
Q15 How do elephant living in the tropical
rainforest adapt itself?
Answer: It has trunk which it uses for as a nose and
also used for picking up the food.
Tusks are modified teeth .it can tear the bark
of the trees with it.
Large ears of the elephant help it to hear
even very soft sounds.
CBSE
Class-7th Science Weather, Climate and Adaptations of Animal and Climate
Weather describes the condition of the
atmosphere. It might be sunny, hot, windy or cloudy, raining or snowing.
The weather depends on the temperature, precipitation,
humidity and atmospheric pressure of the part of atmosphere (air) closest to
the surface of the earth. The weather is constantly changing
as temperature and humidity change in
the atmosphere.
Climate is the average weather conditions - temperature, pressure, precipitation and humidity - expected for a certain place. Climate is based on the average weather experienced over 30 years or more. Read full post:
Climate is the average weather conditions - temperature, pressure, precipitation and humidity - expected for a certain place. Climate is based on the average weather experienced over 30 years or more. Read full post:
Searches related to weather and climate class 7
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