UCLA APES Review4

Which of the following energy sources is a chief contributor to greenhouse gas emissions as well as increasing environmental mobility of mercury?

• Nuclear power
• Wind power
• Coal
• Natural gas cogeneration

Use Figure 19-2. Between 400,000 and 10,000 years ago, the highest CO2 concentration was approximately

• 380 ppm
• 320 ppm
• 290 ppm
• 200 ppm

Swine produced 21.0 millions of metric tons of CO2 emissions in 2005.  There were approximately 60.6 million swine in the U.S. in 2005.  About how much emissions did EACH of these swine produce?

• 0.035 metric tons
• 0.35 metric tons
• 3.5 metric tons
• 35 metric tons

Use Figure 19-3. Ignoring CO2 emissions caused by fossil fuel use, which would be the best practice to reduce anthropogenic greenhouse gases?

• eliminate the use of ozone-depleting chemicals
• convert wetlands into agricultural land
• institute policies that reduce deforestation worldwide
• increase the use of nitrogen-based fertilizer

The concentration of which of the following greenhouse gases is LEAST affected by human activity?

• water vapor
• carbon dioxide
• chlorofluorocarbons
• methane

Which of the following is a way igneous rock is formed?

• weathering
• erosion
• transportation
• cooling & crystallization

Magma rises at all of the following locations EXCEPT:

• divergent zones
• transform plate boundaries
• subduction zones
• hot spots

If a country's growth rate is 7%, what is it's doubling time?

• 5 years
• 35 years
• 10 years
• 42 years

Which of the following correectly describes the results of an experiment that found the LD50 of a chemical?

• 2 out of every 100 rats died
• 25 out of every 50 rats died
• 1 out of every 50 rats got sick
• 50 out of every 100 rats got sick

Desalinization is:

• taking salt water and making it a pH of 7.5.
• being investigated to solve the Ogallala Aquifer problems
• a problem with saltwater instrusions
• extremely expensive and energy consuming