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20 questions
Organic matter is a main part of soil. What is the other main part of soil?
worms
dirt
water
inorganic matter
In a drought, farmers often have problems with their topsoil blowing away when it gets really dry. What could farmers do to keep the lightweight, dry soil from blowing away or eroding?
Plant the seeds farther apart.
Surround the fields with natural barriers, such as trees to block the wind.
Keep cows in the field.
Farmers often have trouble with their topsoil washing away during times of heavy rainfall. What could they do to keep the soil from washing away or eroding?
Keep pigs in the field.
Plant crops in valleys rather than on hills.
Try to create a place for the water to run off.
You are planning to buy a home along a river. You want to make sure that your home is safe from flooding and erosion. Which home should you buy?
A house on land that is level with the river with lots of pretty flowers.
A house on rocky, gently sloping land away from the river.
A house at the top of a steep cliff that is made of sandy soil.
What is a renewable resource?
A resource that can be replaced or recycled.
A resource that will not run out.
A resource that cannot be replaced at all, or cannot be replaced as fast as people use it.
What is a non-renewable resource?
A resource that can be replaced or recycled.
A resource that will not run out.
A resource that cannot be replaced at all, or cannot be replaced as fast as people use it.
What is an inexhaustible resource?
A resource that can be replaced or recycled.
A resource that will not run out.
A resource that cannot be replaced at all, or cannot be replaced as fast as people use it.
Sand dunes in the Middle East are created when the wind moves sand from deserts to new places. The sand being moved to a new location is an example of which of Earth's processes?
erosion and deposition
glacier movement
Earth crust movement
land mass motion
After a very heavy rain, a large amount of Earth breaks loose on a hillside. Which of Earth's processes caused this?
glacier movement
weathering
land mass motion
volcanic eruptions
Mount Everest grows 2 inches per year as the tectonic plates below it move toward each other. Which of Earth's processes causes this?
weathering
Earth crust movement
land mass motion
erosion and deposition
In the rock cycle, what causes igneous rock to form?
heat and pressure
weathering and erosion
tectonic plates
the cooling of magma
in the rock cycle, what causes sedimentary rock to form?
compaction and cementation
melting
heat and pressure
red, hot magma
In the rock cycle, what causes metamorphic rock to form?
red, hot magma
heat and pressure
erosion
wind
in the erosion lab, the larger, heavier sediments were generally deposited in the canyon and alluvial fan. Why did this happen?
the sediments were able to flow a long distance
the sediments couldn't be carried as far
in the erosion lab, the smaller and lighter sediments, such as clay and silt, were generally deposited downstream in the basin. Why did this happen?
the sediments were able to flow a long distance
the sediments couldn't be carried as far
In the erosion lab, what caused an increase in weathering, erosion, and deposition?
increased water supply
increased slope
both increased water supply and increased slope
neither - the weathering, erosion, and deposition stayed the same
Is it constructive or destructive when lava cools and creates new land?
constructive
destructive
The Hawaiian Islands were formed from volcanoes in the Pacific Ocean. Was this a fast process or a slow process?
fast
slow
A landslide occurs after a flash flood's flowing water caused large portions of the riverbank to be washed away. Was the land impacted by a constructive force or a destructive force?
constructive force
destructive force
What is the difference between renewable resources and inexhaustible resources?
Renewable resources, such as cows and eggs, could potentially run out, and inexhaustible resources, such as wind and water, will never go away completely.
Renewable resources can never be replenished and inexhaustible resources can.
Renewable resources are free and inexhaustible resources are very expensive.