Snowfall depths can be tricky to measure because:
A) it is difficult to locate instruments far enough away from buildings.
B) snow usually melts too quickly once it reaches the surface.
C) there is no automated instrument capable of measuring snowfall.
D) wind causes snow to vary in depth across the surface.
Question 2
An air mass is often modified as it moves over the earth's surface. This modification is largely due to:
A) clouds.
B) jet streams above.
C) contact with the new surface below.
D) lifting along fronts.
E) strong pressure gradients.
The platypus is very difficult to spot even on the surface of a river.
Scale used to measure pupil size in millimeters.
Gynecological instruments: Martin pelvimeter.
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