Which of the following factors indicates a high risk for volcanic mudflows or lahars?

A) A shield volcano that forms a low mountain in the tropics
B) A volcano whose hillslopes are covered with hard basaltic lava
C) A volcano with a thick covering of snow or ice
D) All of these are correct.


C) A volcano with a thick covering of snow or ice

Environmental & Atmospheric Sciences

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The global human population in 2015 is more than

A) 10 billion and is increasing at an annual rate of 5%. B) 2.2 billion and is no longer growing. C) 7.3 billion and is growing at a rate of 1.1%. D) 13 billion and is decreasing by 3% each year in developing nations.

Environmental & Atmospheric Sciences

If increases in solar energy were causing global warming, the upper atmosphere would be:

A) cooler than the lower atmosphere. B) slightly warmer than the lower atmosphere. C) significantly warmer than the lower atmosphere. D) the same temperature as the lower atmosphere.

Environmental & Atmospheric Sciences

Decomposition in a landfill will happen faster if there is more ________

A) methane B) air C) sunlight D) moisture E) natural gas

Environmental & Atmospheric Sciences

What is one of the beneficial results of movement of water within the ground? What will be an ideal response?

Environmental & Atmospheric Sciences