Which of the following is NOT a major source of human greenhouse gas emissions?
a. agriculture
b. deforestation
c. cement production
d. burning of coal
e. livestock
B
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In terms of diversity, coral reefs are the marine equivalents to tropical rainforests
Indicate whether the statement is true or false
What processes are responsible for the ocean's salinity?
A) ?weathering and evaporation B) ?weathering and outgassing C) ?evaporation and outgassing D) ?condensation and evaporation
Which systems are more likely to be associated with clear conditions and why?
A. High pressure systems because air descends there. B. High pressure systems because air rises there. C. Low pressure systems because air descends there. D. Low pressure systems because air rises there.
Deep-focus earthquakes are more common
A. at spreading ridges. B. within the interior of plates. C. in subduction zones. D. along transform faults, such as the San Andreas fault in California.