The observed increase in greenhouse gases in the atmosphere is attributable to ________
A) human activities
B) earthquakes
C) volcanoes
D) the end of the "Ice Age"
E) grass fires set by lightning
Answer: A
Environmental & Atmospheric Sciences
You might also like to view...
At perihelion the earth is ________ closer to the sun than at Aphelion
A) 30% B) 3% C) 0.3% D) 0.000003%
Environmental & Atmospheric Sciences
Contrast loess and sand dunes
What will be an ideal response?
Environmental & Atmospheric Sciences
One defining characteristic of minerals is that they are found in a solid state in nature. Which of the following minerals is an exception to this rule, naturally occurring in a liquid state at room temperature?
A) Diamond B) Ice C) Carbon D) Calcite
Environmental & Atmospheric Sciences
Continental environments include all of the following except ________.
A. glacial deposits B. alluvial fans C. lake beds D. river beds E. coral reefs
Environmental & Atmospheric Sciences