Which of the following elements is a halogen?
A. lithium (Li)
B. indium (In)
C. lead (Pb)
D. chlorine (Cl)
E. argon (Ar)
Answer: D
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Does deforestation act to increase or decrease atmospheric carbon dioxide concentrations?
What will be an ideal response?
Climatologists warn of a tipping point when global temperatures trigger unavoidable catastrophic events and sea levels rise more than 25 feet. What single event would cause the sea level to rise that much?
A) Increased precipitation over the continents B) Melting of the Greenland Ice Sheet C) Thermal expansion of the oceans D) Melting of the polar ice caps
Automated Surface Observing Systems (ASOS) measure
a. wind speed and direction. b. cloud patterns. c. sun angles. d. likelihood of flooding. e. likelihood of lightning strikes.
Global warming is not uniform throughout the earth as some places it is more severe than others.
Answer the following statement true (T) or false (F)