Natural Vegetation and Wildlife Quiz - CBSE Class 9 Social Science
Free practice quiz: Natural Vegetation and Wildlife (CBSE Class 9 Social Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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Which type of natural vegetation is found in areas receiving rainfall less than 70 cm?
- Tropical Thorn Forests
- Tropical Evergreen Forests
- Tropical Deciduous Forests
- Montane Forests
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Answer: A. Tropical Thorn Forests
Tropical Thorn Forests are found in areas with less rainfall, specifically less than 70 cm. They are characterized by thorny trees and bushes.
Which of the following trees is primarily found in desert vegetation?
- Teak
- Cactus
- Sandalwood
- Pine
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Answer: B. Cactus
Cactus is a xerophytic plant commonly found in desert areas. These plants have adapted to survive in arid conditions with very little water.
What is the main consequence of deforestation on wildlife?
- Increased biodiversity
- Higher air quality
- Habitat loss
- Increased human settlements
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Answer: C. Habitat loss
Deforestation leads to habitat loss, which is a major threat to wildlife as it leads to a decrease in species population and biodiversity.
In which type of natural vegetation are saal, teak, and shisham commonly found?
- Thorn Forests
- Tropical Evergreen Forests
- Tropical Deciduous Forests
- Alpine Vegetation
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Answer: C. Tropical Deciduous Forests
These species are typical of Tropical Deciduous Forests, which shed their leaves seasonally in response to dry or cold conditions.
What characteristic allows xerophytes to survive in desert conditions?
- Long roots
- Broad leaves
- Thin stems
- High water loss
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Answer: A. Long roots
Xerophytes have adaptations like long roots for reaching deep water tables, thick stems, and reduced leaf areas to minimize water loss, enabling them to survive in arid conditions.