Which of the following is the most abundant long-lived greenhouse gas in our atmosphere?
A) Methane B) Water vapor C) Nitrous oxide D) Carbon dioxide
D
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A tree harvesting method that involves cutting intermediate-aged or mature trees singly or in small groups is called
a. clear-cutting b. strip cutting c. selective cutting d. patch cutting e. landscape cutting
Human-induced global warming using today's technology can be thought of as a geologically
temporary phenomenon. Why is this? What will be an ideal response?
Both batholiths and stocks are ____
A)mostly discordant B)not considered plutons C)found in South America D)always exposed at the surface via erosion E)unable to follow Bowen's reaction series because of their size and depth
Radioactive substance A breaks down to substance B with a half-life of 1,000 years. If we start out with four kilograms of radioactive substance A, how much of those four kilograms of substance A will remain in 3,000 years?
A) 250 grams B) 500 grams C) 1 kilogram D) 2 kilograms