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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________ is the process of sand grains bouncing or rolling along the surface
A) Saltation B) Infiltration C) Abrasion D) Deflation
Environmental & Atmospheric Sciences
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
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
Which of the following features best describes this object?
A. barred spiral galaxy B. supernova C. planetary nebula D. blue star
Environmental & Atmospheric Sciences