Where and when does a dust devil generally occur?
a. On Antarctica in winter.
b. In a low-pressure area during summer.
c. In the desert during dry conditions.
d. Along the equator throughout the entire year.
c. In the desert during dry conditions.
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In which direction does Rush Creek flow?
The question is based on this contour line map with elevations shown in feet.
• North is to the top of the map.
• Streams are shown with dashed lines.
• A graphic scale for measuring horizontal distances is shown below the map.
• Estimate elevations between contour lines to the nearest half-contour interval; assume that the top of a
hill is one-half-contour interval higher than the highest contour line shown.
What will be an ideal response?
An unstable air parcel that rises through a stable layer eventually returns to its original level because
A) its density is less than that of the surrounding air B) its density is greater than that of the surrounding air C) its density remains the same despite vertical motions D) vertical motions cannot change the air's density
Which strategy is recommended by environmental economists to help make the transition away from unsustainable economic growth?
A. Substitute ethanol or natural gas for oil. B. Move toward a steady-state economy. C. Continue economic growth for the jobs. D. Provide businesses with profits even though unsustainable. E. Provide tax supports to fossil fuel processors.
When an accumulation of large mineral grains has been produced from a coarse crystalline rock due to weathering, the effect is known as ____________________
Fill in the blank(s) with correct word