Acid rain has a negative impact on ecosystems and accelerates the chemical weathering of concrete structures and marble building materials. Which of the following compounds released by human activity are responsible for acid rain?
A. ozone and nitrogen oxide
B. sulfur dioxide and carbon dioxide
C. ozone and carbon monoxide
D. sulfur dioxide and nitrogen oxide
E. carbon monoxide and carbon dioxide
Answer: D
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The midlatitude steppe climate supports mostly which type of agriculture?
a. some other kind of agriculture not listed b. Midlatitude steppe does not support any kind of agriculture. c. pastoral nomadism d. oasis and irrigated agriculture e. dry farming
What are proxy indicators?
What will be an ideal response?
Aircraft cannot fly directly into a hurricane, so they have to collect data from well above the storm
Indicate whether the statement is true or false