1. vascular system
2. aerenchyma
3. root system
4. stomatal system
stomatal system
1. freshwater wetlands
2. salt water wetland
3. least productive ecosystems
4. None of the above
salt water wetland
1. grasses
2. floating leaved plants
3. trees and shrubs
4. None of these
trees and shrubs
1. recycling of groundwater
2. controlling floods
3. purify run-off water
4. All of the above
All of the above
1. growing crops in between rows of trees
2. growing crops after removal of trees
3. growing crops on degraded soils
4. None of the above
growing crops in between rows of trees
1. jhum
2. sawan
3. harhi
4. None of these
jhum
1. well-developed vascular system
2. reduced vascular system
3. well -developed root system
4. well-developed stomatal system
reduced vascular system
1. Maharashtra
2. madhya Pradesh
3. North-Eastern states
4. Himachal Pradesh
North-Eastern states
1. stomata on the upper surface
2. stomata on the lower surface
3. stomata on both the surface
4. no stomata
stomata on the upper surface
1. 40%
2. 50%
3. 10%
4. 20%
40\%