Overgrazing does NOT limit soil erosion on farmland.
True
False
False. Overgrazing can lead to soil compaction, loss of vegetation cover, and increased runoff, which can all contribute to soil erosion on farmland.
To decrease soil erosion, humans can
a
plant more cover crops
b
plant less cover crops
a. Plant more cover crops. Cover crops help to protect the soil by holding onto and stabilizing it, reducing runoff and decreasing the impacts of wind. This can help to protect the soil from erosion.
Harrison wants to use only containers that come from non-renewable resources. He chooses _________ because it is the only container that comes from a renewable resource such as plants.
a
A plastic cup
b
A paper cup
c
A coffee cup
d
A measuring cup
b. A paper cup. Paper comes from trees, which are a renewable resource as long as they are harvested sustainably. In contrast, plastic cups are made from petroleum, a non-renewable resource. Coffee cups and measuring cups can be made from various materials, including both renewable and non-renewable resources.
Solar panels that heat water use the Sun's radiant energy to reduce the need for non-renewable energy sources.
True
False
True. Solar panels that heat water use the Sun's radiant energy to produce hot water, reducing the need for electricity or fossil fuels to heat water. This helps to decrease dependence on non-renewable energy sources, making it a more sustainable option.
Loss of topsoil may lead to the pollution of rivers and streams by increasing _________.
a
Weathering
b
Runoff
b. Runoff. Loss of topsoil can lead to increased runoff, as there is less soil to absorb and retain water. This can cause sediments, nutrients, and other pollutants to be carried into rivers and streams, leading to pollution.
About two-thirds of Georgia is forested and has a lot of potentials to produce power from renewable resources through____________.
a
Biomass
b
Recycling
c
Recharging