After taking urban warming into account, average surface air temperatures have increased by about ________ in the past 130 years

a. 0.01oC
b. 0.1 oC
c. 0.6 oC
d. 6 oC


c

Environmental & Atmospheric Sciences

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Agricultural density is the ratio of farmers to the total population

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

The ________ are the mineral class that accounts for more than 90 percent of the Earth's crust

A) silicates B) sulfates C) carbonates D) sulfides

Environmental & Atmospheric Sciences

What is the basic subunit of elements?

A) molecules B) neutrons C) protons D) electrons E) atoms

Environmental & Atmospheric Sciences

How was low-level nuclear waste disposed of prior to 1970?

a. sanitary landfills b. on-site incineration c. recycled into nuclear fuel d. added to cement e. dumped in the ocean

Environmental & Atmospheric Sciences