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Question
Read the following statements (I - III) and select the correct option stating true (T) or false (F).
I. Freshwater biomes have less than 1% salt content.
II. In subtropical desert biomes, soils are sandy, gravelly, and virtually devoid of organic materials.
III. Temperate grassland is a terrestrial biome that represents the hottest places on the Earth.
Read the following statements (I - III) and select the correct option stating true (T) or false (F).
I. Freshwater biomes have less than 1% salt content.
II. In subtropical desert biomes, soils are sandy, gravelly, and virtually devoid of organic materials.
III. Temperate grassland is a terrestrial biome that represents the hottest places on the Earth.
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Solution
The correct option is A I - T, II - T, III - F
A biome, in simple terms, is a regional unit characterised by plants, animals and climate in that area. Different climates lead to different kinds of flora (plants) and fauna (animals) which are adapted to specific environments.
Freshwater biomes are those biomes which have a salt content less than 1%. This includes ponds, lakes, rivers, and streams. Humans rely on these freshwater biomes for drinking water, crop irrigation, and sanitation. Therefore, statement I is true.
Deserts are terrestrial biomes that are characterized by an extremely arid climate. They receive least rainfall and have extreme high temperatures with conditions like low atmospheric humidity (the amount of water vapour in the atmosphere).
The soil here is sandy, gravelly or stony and that can not hold water. These areas or biomes have sparse vegetation in the form of deep rooted shrubs, succulent xerophytes (cactus).
Organic material is generally formed in the soil by the action of decomposers on dead and decaying (plant and animal) matter. But in desert areas as the vegetation is sparse and animals also produce less excreta to conserve water in the body, soil is not rich in organic matter. Therefore, statement II is true.
Figure : Desert
Temperate forests have moderate rainfall and temperature, The leaves are broad and trees are very tall. These biomes are present in areas like America, New Zealand, Asia and Australia. Whereas desert biomes are hottest and receive least rainfall. Therefore, statement III is false.
Figure : Temperate forest
A biome, in simple terms, is a regional unit characterised by plants, animals and climate in that area. Different climates lead to different kinds of flora (plants) and fauna (animals) which are adapted to specific environments.
Freshwater biomes are those biomes which have a salt content less than 1%. This includes ponds, lakes, rivers, and streams. Humans rely on these freshwater biomes for drinking water, crop irrigation, and sanitation. Therefore, statement I is true.
Deserts are terrestrial biomes that are characterized by an extremely arid climate. They receive least rainfall and have extreme high temperatures with conditions like low atmospheric humidity (the amount of water vapour in the atmosphere).
The soil here is sandy, gravelly or stony and that can not hold water. These areas or biomes have sparse vegetation in the form of deep rooted shrubs, succulent xerophytes (cactus).
Organic material is generally formed in the soil by the action of decomposers on dead and decaying (plant and animal) matter. But in desert areas as the vegetation is sparse and animals also produce less excreta to conserve water in the body, soil is not rich in organic matter. Therefore, statement II is true.
Figure : Desert Temperate forests have moderate rainfall and temperature, The leaves are broad and trees are very tall. These biomes are present in areas like America, New Zealand, Asia and Australia. Whereas desert biomes are hottest and receive least rainfall. Therefore, statement III is false.
Figure : Temperate forestSuggest Corrections
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