Semester 1 Review

An important effect that hunter-gatherer societies may have had on the environment was…

• soil erosion.
• extinction.
• air pollution.
• all of these.

An important effect of the agricultural revolution was…

• soil erosion.
• habitat destruction.
• plant and animal domestication.
• all of these.

Which of the following does not describe an effect of the Industrial Revolution?

• Fossil fuels became important energy sources.
• The amount of land and labor needed to produce food increased.
• Artificial substances replaced some animal and plant products.
• Machines replaced human muscle and animal power.

Pollutants that are not broken down by natural processes are…

• nonrenewable.
• nondegradable.
• biodegradable.
• nonrenewable and biodegradable.

All of the following are renewable resources except…

• energy from the sun.
• crops.
• minerals.
• freshwater.

In his essay, "The Tragedy of the Commons," one factor that Garrett Hardin failed to consider was…

• the destruction of natural resources.
• human self-interest.
• the social nature of humans.
• none of these.

The term used to describe the productive area of Earth needed to support the lifestyle of one person in a particular country is called…

• supply and demand.
• the ecological footprint.
• the consumption crisis.
• sustainability.

Scientists form _____ hypotheses to answer questions.

• accurate
• short
• mathematical
• testable

Risk is the _____ of a negative outcome.

• sample
• statistic
• probability
• event

If the results of your experiment do not support your hypothesis, you should…

• publish your results anyway.
• consider the results abnormal and continue working.
• find a way to rationalize your results.
• try another method.