WorksheetsSoil erosion
Total questions: 26
Worksheet time: 19mins
Q7. What is soil erosion?
A naturally occurring process that affects all land forms
Type of soil
A time period
The wearing away of top soil
What is deposition?
The movement of sediment
The breaking of sediment
The dropping of sediment
Small pieces of rock that have been weathered from a larger rock are known as...
sand
sediment
soil
Humus is:
the part of soil made up of decayed parts of once-living things.
a dip that is made of garbanzo beans.
a bone that can be found in the upper arm.
a sound people make when their lips are together.
What kind of soil is good for growing plants?
topsoil
sand
clay
a child's stinky shoe
The very top layer of soil is mostly made of
Solid rock
Clay and mineral deposits
A mixture of minerals and organic material
Mostly organic material (humus)
Which layer of soil is on the bottom?
topsoil
subsoil
bedrock
bottomsoil
What is the layer of soil just below the topsoil?
soil
subsoil
topsoil
terrace farming
What happens to soil if no plants are in them and it rains?
soil erosion
soil absorbs the water
soil becomes mud
soil becomes sand
Soil supports the growth of plants by holding their _________.
leaves
stem
roots
none of these
Which of the following does not cause soil erosion?
deforestation
overgrazing
growing plants
none of these
Step farming reduces soil erosion.
True
False
Not sure
none of these
Identify the picture.
embankment
step farming
afforestation
deforestation
The protection of soil against erosion is called ____.
Soil pollution
Soil conservation
Weathering
Soil ploughing
Soil conservation done on hill slopes _____________
Ploughing
Terracing
Erosion
All of the above
How can farmers prevent/slow down soil erosion?
Cover their crops
Water the soil everyday in order to weigh it down
Plant crops, plants, etc. to hold the soil in place
Cut down all of the trees and crops.
TRUE OR FALSE: The steeper the slope, the higher the possibility of erosion.
TRUE
FALSE
How does water causes erosion?
When soil is mixed to water, it dissolves
As water flows, its force transports rocks and soil particles from one place to another.
It doesn't contribute to erosion
Soil erosion is caused by
Deforestation
Animals overgrazing
Clearing vegetation from steep slopes
All of the above
cutting of trees in large number is called____________
afforestation
reforestation
diforestation
deforestation
overgrazing leads to
soil conservation
good harvest
soil erosion
afforestation
soil irosion
