Home Page Textbooks Prentice Hall Biology (California) Section 6.2: Renewable and Nonrenewable Resources

Prentice Hall Biology (California)

1st Edition

Kenneth R. Miller, Levine

ISBN: 9780132013529

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Section 6.2: Renewable and Nonrenewable Resources

Exercise 1

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Renewable resources can be replenished by biogeochemical cycles. When these resources are used up, natural processes will or can produce them again in a short span of time.

Nonrenewable resources cannot be replenished by natural forces. These resources are usually created over an extremely long time and when they are used up, they can be considered gone forever because of the long time it takes to produce them.

Exercise 2

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Farming and overgrazing harms land resources by turning land into deserts. Plowing also ruins land resources as it increases soil erosion. The use of CFC’s and the burning of fossil fuels harms our air resources. They damage the ozone layer, on the part of CFC’s, and creating smog when it comes to fossil fuels. Pollution threatens our water supply by causing disease and encouraging bacteria in aquatic habitats. Developing wetlands harm the water resources by removing the very things that help purify the water.

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Exercise 3

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Because the fishes in the sea are free and available to any one. The fishes are being exploited and are slowly depleting and they are not given a chance to replenish. This is a (tragedy of the commons)

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The “tragedy of the commons” is an scenario that occurs when commonly shared resources are depleted due to overharvesting rather than making an effort to conserve them.

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From a reasonable perspective, it would seem counterintuitive to conserve commonly shared resources if everyone else would take advantage of it without making the same effort.

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Eventually, the commonly shared resource will be depleted, which results in the tragedy of the commons. The decline in world fisheries may also represent this scenario as people continue to overharvest aquatic resources (such as fish) without making an effort to conserve them.

Exercise 4

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There are many ways in which environmental resources can be helpful to human health. Two examples of which are natural processes that help clean the air and water that we use.

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Large forests are capable of capturing carbon dioxide and other pollutants from our atmosphere. This allows the air we breathe to be cleaned at no cost, which helps with our health.

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Additionally, the soil and certain organisms in nature are capable of cleaning the water such as in rivers and streams. Soil particles can filter out pollutants, while certain microbes can remove chemicals from the water at no cost. This also helps with our health.

Exercise 5

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The most important obligation of humans in preserving resources is to be responsible. People must change their habits and the government must continue to enforce environmental laws and prohibitions in using natural resources. Aside from replanting more trees and conducting clean up drives in forests, the government can build parks and reserves that will serve as an ecosystem for various plants and animals.

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logging should never be done on old-growth forests and younger trees. After cutting down a mature trees for log, a faster growing tree breed should be re-planted. the new trees and overall ecosystems should be managed.

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Section 6.2: Renewable and Nonrenewable Resources

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