Environmental Unit Review

The concentration of carbon dioxide in the atmosphere

• is increasing in part due to fossil fuel use.

• has not significantly changed in the past 200 years.

• is increasing in part due to deforestation.

• has been decreasing since the 1800’s.

• can not be reliably measured

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The environment refers to

• all conditions surrounding us on Earth.

• species interactions that affect human life.

• conditions that cause negative effects on our health.

• interactions that harm the atmosphere.

• the sum of all the conditions surrounding us that influence life.

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Evidence of biodiversity is seen in

• genetic variation among human populations.

• number of species in a region.

• number of ecosystems and habitats in a region.

• genetic variation among plants and animals in a region.

• All of these answers are correct.

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Which is NOT a non-renewable resources?

• aluminum

• oil

• timber

• copper

• coal

Which is an example of a sustainable practice?

I. Replanting a logged forest

II. Developing substitutes for nonrenewable resources

III. Banning the use of all fossil fuels without a planned transition to an alternative

• I only

• II only

• I and III

• I and II

• I, II, and III

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An ecological footprint considers

• per capita resource use of a nation.

• how much an individual consumes in terms of land area.

• average yearly consumption of resources.

• resources that an entire nation consumes in and average year.

• the ratio of resources consumed in developed nations to less developed nations.

An experiment is designed to determine if wheat grows better when it is planted alone or with clover. The design calls for 3 pans of each treatment. Pans A, B, and C contain only wheat. Pans D, E, and F contain clover and wheat planted in alternating rows. Each pan contains a total of

100 seeds. All treatments contain the same type of soil, are planted in the same size pan, are exposed to the same amount of sunlight, and are maintained at the same temperature throughout the course of the experiment.

The treatments planted with only wheat are the

• sample size.

• control.

• environmental variable.

• null hypothesis.

• replication.

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The study of environmental science differs from study of other natural sciences because it

• doesn’t use experiments.

• does not require any mathematical calculations.

• also includes politics, law, and economics.

• does not require an understanding of biology.

• uses the scientific process.

The goal of using resources to meet the needs of both current and future generations is referred

to as

• NAFTA.

• preservation

• remediation

• sustainability

• environmental science

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An experiment is designed to determine if wheat grows better when it is planted alone or with clover. The design calls for 3 pans of each treatment. Pans A, B, and C contain only wheat. Pans D, E, and F contain clover and wheat planted in alternating rows. Each pan contains a total of

100 seeds. All treatments contain the same type of soil, are planted in the same size pan, are exposed to the same amount of sunlight, and are maintained at the same temperature throughout the course of the experiment.

Which statement provides a hypothesis for this experiment?

• Wheat grows taller when planted by itself than when it is alternated with clover.

• Clover grows better when planted by itself.

• Wheat grows better when planted together with clover.

• Clover grows better when planted together with wheat.

• Both A and C are legitimate hypotheses for this experiment.

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