WorksheetsEnvironmental Science - Unit 4
Total questions: 23
Worksheet time: 12mins
The three numbers on a bag of fertilizer represent all of the following EXCEPT
nitrogen
phosphorus
magnesium
potassium
environmental advantage of no-till agriculture
less erosion
decrease in labor costs
increased use of herbicides and pesticides
increased need for irrigation
Emphasis on use of pesticides, herbicides, and monoculture
green revolution
agricultural revolution
industrial revolution
subsistence agriculture
Agriculture related environmental issue in northern Africa
urbanization
pesticide treadmill
desertification
eutrophication
Which of the following would be best addressed with contour plowing?
eutrophication
soil erosion
soil salinization
pesticide tredmill
How much of Earth's land is used for agriculture?
14%
24%
38%
52%
Which process breaks down rocks and assists in creating more soil?
weathering
erosion
deposition
decomposition
Which process transports soil away from where it should be?
weathering
erosion
deposition
decomposition
Which process breaks down organic matter and adds it to soil?
weathering
erosion
deposition
decomposition
Soil is a
perpetually renewable resource.
potentially renewable resource.
nonrenewable resource.
What is one of the goals of soil conservation?
reduce pesiticide usage
increase herbicide usage
reduce erosion
increase nutrient depletion
Which type of plant adds nitrogen from the air into soil?
legumes
tomatoes
carrots
corn
Growing multiple crops together is known as
monoculture.
polyculture.
composting.
terracing.
Making sure there is always vegetation planted in soil will
increase erosion.
decrease erosion.
decrease nutrient depletion.
decrease the need for pesticides.
When is land most at risk for erosion?
end of spring
middle of summer
beginning of winter
beginning of fall
Which soil conservation method is used to replant crops in different areas after each season?
intercropping
crop rotation
contour farming
terracing
Cutting steps into a hill or mountain to farm on is
terracing.
contour farming.
conservation tillage.
stripcropping.
Desertification occurs due to
drought.
erosion.
overgrazing.
all options are correct.
Which was NOT a major cause of the Dust Bowl?
drought
uncovered vegetation
nutrient depletion
erosion
The buildup of salt in soil due to incorrect irrigation is called
desertification.
salinization.
decomposition.
erosion.
Humans choosing which seeds to plant each season is called
natural selection.
selective breeding.
overgrazing.
salinization.
What is causing the pollinator population to decline?
drought
nutrient depletion in soil
pesticide usage
herbicide usage
Organic agriculture does NOT use
chemicals like fertilizers and pesticides.
much water.
taller crops.
biological pest control.
