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WorksheetsMODIFICATIONS OF THE ENVIRONMENT-B
Total questions: 10
Worksheet time: 3mins
The reservoir of water present under the ground
water source
gravitational water
aquifer
marine water
The downward movement of gravitational water through the soil is called____________________
percolation
gravity
retention
potable water
The physical properties of soil include
colour
porosity
both a and b
acidity
This layer consists of surface litter like leaves, twigs, animal wastes etc
O - horizon
sub soil
top soil
C-horizon
The main reason why the soil becomes contaminated is due to the presence of
man made waste
animal excreta
dry leaves
both b and c
Organic farming methods should be encouraged to reduce soil pollution.
true
false
cant say
The pollutants absorbed by the forest soil are broken down by soil ______________ into simpler forms.
bacteria
virus
fungi
algae
The removal of top soil by wind, water or rain is called
soil erosion
deforestation
crop rotation
The forests are essential to maintain water and soil resources.
True
False
The forests serve as natural barriers to storms and floods and they have considerable water retention capacity that reduces runoff and landslides during heavy rains.
True
False
