In this chapter students will learn about the materials considered Earth resources, which of those are renewable and which are nonrenewable; and how Earth resources are used. Also it will be discussed the importance of managing properly the use of these resources in order to guarantee its existence for future generations.
Land Resources
In this lesson students will be able to understand why land is considered a natural resource, and will recognize the need to protect Earth's land as a resource. Also how humans adjust to the uneven distribution of land resources.
Desertification
Air Resources
All living things depend on gases in the atmosphere. All organisms depend on atmosheric oxygen for celular respiration. In this lesson students will recognize that the atmosphere is an Earth resource and the importance of clean air.
Water Resources
Of
all the water of the Earth, only 3% of Earth's water is freshwater. Of this
freshwater, only 0.003 is available to humans for domestic, agricultural, and
industrial processes. In this lesson students will understand the importance of
clean freshwater, how water is distributed and used, and will identify ways in
which humans can reduce the need for increasing production of freshwater
resources.
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