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# 6.27: Renewable and Nonrenewable Resources

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Practice Renewable and Nonrenewable Resources
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Renewable or nonrenewable, what's the difference?

That's like asking the difference between having an endless supply and having a limited supply. Will this planet eventually run out of oil? Probably. So oil is a nonrenewable resource.

### Renewable and Nonrenewable Resources

A natural resource is something supplied by nature that helps support life. When you think of natural resources, you may think of minerals and fossil fuels. However, ecosystems and the services they provide are also natural resources. Biodiversity is a natural resource as well.

#### Renewable Resources

Renewable resources can be replenished by natural processes as quickly as humans use them. Examples include sunlight and wind. They are in no danger of being used up (see Figure below ). Metals and other minerals are renewable too. They are not destroyed when they are used and can be recycled.

Wind is a renewable resource. Wind turbines like this one harness just a tiny fraction of wind energy.

Living things are considered to be renewable. This is because they can reproduce to replace themselves. However, they can be over-used or misused to the point of extinction. To be truly renewable, they must be used sustainably. Sustainable use is the use of resources in a way that meets the needs of the present and also preserves the resources for future generations.

#### Nonrenewable Resources

Nonrenewable resources are natural resources that exist in fixed amounts and can be used up. Examples include fossil fuels such as petroleum, coal, and natural gas. These fuels formed from the remains of plants over hundreds of millions of years. We are using them up far faster than they could ever be replaced. At current rates of use, petroleum will be used up in just a few decades and coal in less than 300 years. Nuclear power is also considered to be a nonrenewable resource because it uses up uranium, which will sooner or later run out. It also produces harmful wastes that are difficult to dispose of safely.

### Summary

• Renewable resources can be replaced by natural processes as quickly as humans use them. Examples include sunlight and wind.
• Nonrenewable resources exist in fixed amounts. They can be used up. Examples include fossil fuels such as coal.

### Practice I

Use this resource to answer the questions that follow.

• http://www.hippocampus.org/Biology $\rightarrow$ Non-Majors Biology $\rightarrow$ Search: Human Impacts on Biogeochemical Cycles
1. What was the energy source for much of the Industrial Revolution? How were these fuels made?
2. Why are carbon dioxide levels rising in the atmosphere?

### Review

1. Define natural resource.

2. Distinguish between renewable and nonrenewable resources and give examples.

3. Infer factors that determine whether a natural resource is renewable or nonrenewable.

### Vocabulary Language: English Spanish

biodiversity

biodiversity

The variety of life and its processes; including the variety of living organisms, the genetic differences among them, and the communities and ecosystems in which they occur.
natural resource

natural resource

Resource supplied by nature that helps support life.
nonrenewable resource

nonrenewable resource

Natural resource that exists in a fixed amount and cannot be replenished.
renewable resource

renewable resource

Natural resource that can be replenished by natural processes as quickly as it is used.
sustainable use

sustainable use

Use of resources in a way that meets the needs of the present and also preserves the resources for the use of future generations.

## Date Created:

Feb 24, 2012

Nov 11, 2014
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