A higher 18O/16O ratio in ocean sediment cores indicates a ________ climate, and a higher 18O/16O ratio in ice cores indicates a ________ climate
A) cooler; warmer
B) warmer; cooler
C) cooler; cooler
D) warmer; warmer
A
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Which of the following accounts for the largest usage of groundwater in the United States?
A) Domestic and municipal water B) Agriculture and irrigation C) Cooling reactors at nuclear power plants D) Manufacturing and industry
The North African peoples of Morocco, Algeria, and Tunisia share many traits with people to the east, and therefore, consider themselves Middle Easterners
a. True b. False Indicate whether the statement is true or false
What are the criteria pollutants and the National Ambient Air Quality Standards, and how are the standards used?
What will be an ideal response?
Earthquakes occur at subduction zones, but volcanoes do not because the subducted lithosphere is pushed deep into the mantle.
Answer the following statement true (T) or false (F)