Give one example of an animal that can live both in water and on land.
“A fish dies when taken out of water whereas a wall lizard will die if kept under water.” Mention the term used to describe such abilities that allow fish and lizard to survive in their respective habitats.
Choose the odd one from the following options :
(a) Thick layer of fat under the skin
(b) White fur
(c) Long grasping tail
(d) Wide and large feet with sharp claws
The coldest region on earth is the –
(a) polar region
(b) tropical region
(c) temperate region
(d) coastal region
Africa has immense natural resources and yet it is industrially the most
backward continent. Comment.
Read the following environmental conditions of tropical rain
forests.
(i) Hot and humid climate
(ii) Unequal lengths of day and night
(iii) Abundant rain fall
(iv) Abundant light and moisture
Identify the conditions from the above list that are responsible
for the presence of large number of plants and animals in
tropical rain forests.
(a) (i) and (ii) (b) (i) and (iii)
(c) (i), (iii) and (iv) (d) (ii) and (iv)
What are the major factors that are responsible for the loss of biodiversity?
What steps are needed to prevent them?
Which of the following statement is incorrect for penguins?
(a) They huddle together
(b) They cannot swim
(c) They have webbed feet
(d) They have streamlined body
Given below are some adaptive features of animals:
(i) Layer of fat under the skin
(ii) Long, curved and sharp claws
(iii) Slippery body
(iv) Thick white fur
Which of them are the adaptive features of a polar bear?
(a) (i) only (b) (i) and (ii) only
(c) (i), (ii) and (iii) only (d) (i), (ii), and (iv) only
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