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Which of the following is a better mining alternative to Open-cast mining? A. Treating ores with sulfuric acid and then using electrolysis to extract them. B. Using explosives to blast the ore out of the surrounding rock. C. Accumulate the metal ores in water through eutrophication. D. Using plants as a carbon sink to capture and store carbon.
Which of the following is a chemical that causes acid rain? A. CFC B. DDT C. Sulfur dioxide D. Carbon monoxide
One of the greatest threat the Earth faces from air pollution is A. eutrophication B. noxious gases C. destruction of forests D. global warming
If there are approximately 320 million people in the US, how many pounds of garbage is thrown out a DAY in the US? A. 3.2 million pounds B. 320 million pounds C. 14 billion pounds D. 1.4 billion pounds
Which of the following choices does NOT contribute carbon dioxide to the atmosphere? A. Burning coal for heat B. Cutting down forests C. Driving cars D. Producing fertilizers
is the greenhouse gas that has had the most impact on climate change and it is released into the atmosphere by A. NO2 (nitrogen dioxide), deforestation B. CuSO4 (copper sulfate), mining c. CO2 (carbon dioxide), burning fossil fuels D. SO2 (sulfur dioxide), burning fossil fuels
You would expect to see population growth decreasing in a country that: A. has access to clean water. B. is economically developed. C. has access to a variety of food. D. has access to good healthcare.
A new factory is built a short distance from a lake. Some of the waste materials are washed into the lake when it rains. Soon you can observe large blooms of algae, and 6 months later there is nothing left living in the lake. What is this an example of? A. Eutrophication B. Chlorofluorocarbons C. Leaching D. Carbon sink
What is the function of the ozone layer? A. To trap infrared radiation. B. To block UV radiation. C. To recycle sulfur dioxide. D. To absorb carbon dioxide.