According to the World Health Organization, people do not have access to safe drinking water.
A) 6 million
B) 3.1 billion
C) 1 million
D) 1.8 billion
Correct Answer:
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Q20: Water is usually disinfected by using
A) chlorine.
B)
Q21: The respiratory disease most closely associated with
Q22: If the greenhouse effect does raise temperatures
Q23: According to scientists, what is likely to
Q24: The Air Quality Health Index measures:
A) deterioration
Q26: One potential drawback with the use of
Q27: According to Environment Canada, CFLs are cost
Q28: Ozone levels have declined by what percentage
Q29: There will be more people age 60
Q30: Release of into the atmosphere is the
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