I. Match the following:
1. Submerged plants Movement towards light
2. Water Biotic component
3. Bacteria Thin ribbon leaves
4. Phototropism Helps in swimming
5. Webbed feet Abiotic component
Answers
Answer:
from which u hv to match u hv not given column b
Explanation:
pls follow me than u will also follow u
Answer:
Question 1:
Which of the following are producers?
(a) herbivores
(b) carnivores
(c) green plants
(d) bacteria and fungi
ANSWER:
(c) green plants
Green plants produce food by photosynthesis. Hence, they are known as producers.
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Question 2:
Which of these enable the nutrients present in the bodies of plants and animals to go back to the soil after they die?
(a) producers
(b) primary consumers
(c) decomposers
(d) secondary consumers
ANSWER:
(c) decomposers
Decomposers break down the bodies of dead plants and animals, enabling nutrients present in their bodies to be returned to the soil.
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Question 3:
Which of these is not a type of terrestrial habitat?
(a) desert
(b) grassland
(c) fresh water
(d) tundra
ANSWER:
(c) fresh water
A terrestrial habit means a habit on land. Fresh water is an aquatic habit, and is therefore not terrestrial.
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Question 4:
Choose the incorrect pair.
(a) cactus-desert
(b) germs-air
(c) water lily-sea
(d) frog-pond
ANSWER:
(c) water lily-sea
A water lily cannot grow in salty water found in seas.
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Question 5:
Hibernation is an adaptation for
(a) preventing loss of water.
(b) escaping hot weather.
(c) escaping cold weather.
(d) none of these
ANSWER:
(c) escaping cold weather
Animals hibernate in winter to conserve their energy so that they can survive winter without eating too much.
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Question 6:
Which of these are biotic components of the environment?
(a) plants and animals
(b) soil and minerals
(c) air and water
(d) sunlight and temperature
ANSWER:
(a) plants and animals
Plants and animals are living or biotic components of the environment.
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Question 7:
Carbon dioxide in air is used by plants to
(a) breathe.
(b) make food.
(c) remove waste.
(d) trap energy of sun for photosynthesis.
ANSWER:
(b) make food.
Plants use the carbon dioxide from air for making food by the process of photosynthesis.
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Question 8:
Which of these are all aquatic habitats?
(a) freshwater, coastal and rainforest
(b) marine, tundra and desert
(c) mountain, grassland and coastal
(d) marine, freshwater and estuaries
ANSWER:
(d) marine, freshwater and estuaries
Marine habitat means the sea, freshwater habitats include fresh water rivers, ponds etc. Estuaries are regions where rivers flow into the sea.Match the following:
column a column b
1. Submerged plants Movement towards light
2. Water Biotic component
3. Bacteria Thin ribbon leaves
4. Phototropism Helps in swimming
5. Webbed feet Abiotic component