EFFECTS OF EROSION Flashcards
What is soil erosion?
Soil erosion results in the deposition of soil in another location.
Over time, soil sediments
that collect in another location can pile up into another landform such as
floodplains and delta.
Is the Bedrock always have the same material s the topsoil?
No, Because of soil erosion, the topsoil may be made of different materials and settled there form another area.
What happens to the land where the soil is eroded from?
Loss of topsoil through erosion
results in soil degradation.
What happens to the land where the soil is eroded from?
Loss of topsoil through erosion
results in soil degradation.
What is soil degradation?
Soil degradation is the decrease in the quality and fertility of soil to support plants and animals.
T/F
Topsoil has available nutrients from the humus and highly weathered rocks and minerals.
tRUE
T/F
The subsoil is where plants and animals live.
false. Animals and plants live at the topsoil.
What is river siltation?
River siltation is another term to describe the gathering of soil sediments in rivers.
What is the effect of river siltation?
River siltation can change the quality of fish farms and reduce the fish we catch.
is a natural process that happens slowly over time.
soil erosion
What happens to the water that cannot be absorbed by plants?
It will cause a flood
t/f
Landslides can occur with
or without the help of water.
TRUE
T/F
landslides occur more frequently in the DRY season than the rainy season.
false - landslides occur frequently in rainy season
What are the 2 most common effects of soil erosion in the Philippines?
Flooding and Landslide
t/f
Soil erosion reduces the fertility of the soil.
true
t/f
Communities in valleys do not experience soil erosion.
false - even communities in valleys experience soil erosion
t/f
Flood water is always brown.
trues
t/f
New land formation can be a result of soil erosion.
true
t/f
A landslide is a form of soil erosion.
true
t/f
Siltation increases the amount of water in rivers and streams.
false it increase the amount of deposited rocks and soil
t/f
Soil nutrients can be replaced by chemical fertilizers.
false
t/f
Chemical fertilizers increase the humus content of soil.
false - it lessen the humus content of soil
t/f
Damage due to flooding can increase the cost and price of farm products.
true
t/f
Water erodes more soil in forests than in deforested areas.
false - water erodes more soil in deforested areas because no roots will be holding the soil
