WorksheetsGr. 5 - Preventing Weathering and Soil Erosion
Total questions: 25
Worksheet time: 25mins
Soil erosion is the natural process in which the _________ of a field is carried away by physical sources such as wind and water.
topsoil
subsoil
bedrock
none of the above
Identify one cause of soil erosion.
Afforestation
Building breakwaters
Deforestation
Building embankments (dam)
Prevention of soil erosion is also known as ________________.
soil consumption
soil conservation
soil erosion
None of the above
Soil erosion can be slowed by
no-till farming
cutting trees from the middle of fields
plowing at least three times a year
farming on steeper slopes
No-Till Farming and Contour Farming are two examples of preventing soil erosion
True
False
Agriculture cultivation, forest harvesting and overgrazing are all positive effects on soil.
True
False
On steep slopes and mountains, what helps reduce erosion by creating level areas for crops?
a shelter belt
strip cropping
mulching
terracing
In which of the following examples is the farmer utilizing a method of erosion prevention?
planting crops repeatedly, without putting nutrients or fertilizer back into the soil
planting crops in patterns to reduce water run-off
allowing cattle to feed in an area until very little vegetation remains
removing soil from a location and placing it in a water source
Which of the following turns and loosens soil, improving it for crops, but leaving soil vulnerable to erosion.
grazing
no-tilling farming
plowing
terracing
Which of the following is the best definition for terracing?
it is harmful because plants do not grow well when topsoil has been lost
It is when farm animals eat the grass on land until there is almost no ground cover
It is planting along the natural slope of the land to reduce soil erosion.
It is the practice of forming step-like fields on a steep slope
Which of the following is the best definition for overgrazing?
it is harmful because plants do not grow well when topsoil has been lost
It is when farm animals eat the grass on land until there is almost no ground cover
It is planting along the natural slope of the land to reduce soil erosion.
It is the practice of forming step-like fields on a steep slope
Which of the following is the best definition for contour farming?
it is harmful because plants do not grow well when topsoil has been lost
It is when farm animals eat the grass on land until there is almost no ground cover
It is planting along the natural slope of the land to reduce soil erosion.
It is the practice of forming step-like fields on a steep slope
What impact does weathering have on soil formation?
Chemical weathering adds helpful chemicals to the soil
Rocks are broken down into smaller pieces, and finally into sediment
Mechanical weathering adds ice to the soil, which turns into water
Volcanic eruptions contribute metamorphic rocks to the soil
What would be a simple way to prevent erosion?
Blocking the wind
Planting trees
Preventing rainfall
Preventing the flow of rivers
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
We do not depend on soil.
True
False
Not sure
None of these
Q1. What is a major cause of soil erosion?
Running Water
Overgrazing
Agricultural Activities
True or False: Soil takes very little time to form.
True
False
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
Wind blowing sand from one location to another is called
deposition
soil erosion
weathering
What is taken away during erosion?
soil
water
trees
How does wind weather a rock?
The wind slowly drills a hole in the side of a rock.
The wind smashes big rocks against each other.
The wind shakes the big rock and makes it weak.
The wind blows tiny pieces of rock against a big piece of rock. The tiny pieces slowly break the big piece.
