Currently what is the most urgent environmental issue for Europe?
A) deforestation
B) climate change
C) acid rain
D) air pollution
E) fresh water sources
B
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Despite decades of ________, the U.S. remains the world's largest ________
A) regulation, polluter B) deindustrialization, manufacturer C) conservative policies, liberal democracy D) service development, agricultural exporter E) vigorous energy conservation, consumer of fossil fuels
When Pablo and Johanna write up their initial proposal, the instructor will probably ________
A) tell them to start over–it would take many years to do such a study B) tell them that they need at least 100 dogs to do the study C) give them an A for thoroughness, and allow them to proceed with the experiment D) tell them they have a serious problem with the proposal, but it is fixable if they are willing to take care of more dogs Read the following scenario, and answer the questions below. THE EXPERIMENT: Researchers wanted to determine whether pesticide Z is effective at killing grasshoppers that typically invade cornfields. Two 10-acre cornfields located 1 mile apart were chosen. The cornfield to the west was sprayed only with water. The cornfield on the east received the same amount of water with a 10% solution of pesticide Z. The number of grasshoppers in the fields was recorded every week for 10 weeks. RESULTS: The number of grasshoppers in the west field treated only with water doubled after 10 weeks. The number of grasshoppers in the east field treated with pesticide Z declined by 50% after 10 weeks.
Air masses are usually classified according to their ____ and ____
a. pressure; humidity b. wind direction; precipitation type c. humidity; wind direction d. temperature; pressure e. temperature; humidity
Mountains define most of the boundaries between all the following, except
A) Italy & Switzerland. B) France & Spain. C) US & Mexico. D) India & Nepal. E) Austria & Switzerland.