Which of the following physical features has not yet been found on Mars?

A) Polar ice caps
B) H2O-rich atmosphere
C) Extinct volcanoes
D) Sand dunes


Answer: B

Environmental & Atmospheric Sciences

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Which one of the following processes would directly increase the amount of nutrients available to plants?

A) Respiration B) Mineralization C) Primary production D) Photosynthesis

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Which of the following features best describes this object?

A. barred spiral galaxy B. supernova C. planetary nebula D. blue star

Environmental & Atmospheric Sciences

________ is the process of sand grains bouncing or rolling along the surface

A) Saltation B) Infiltration C) Abrasion D) Deflation

Environmental & Atmospheric Sciences

Global climate models are about evenly divided on whether or not there will be global warming over the next 50 years

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences