A radiosonde ____
A) measures particulate matter in the atmosphere
B) monitors surface weather conditions in remote areas
C) measures the vertical distribution of atmospheric temperature, pressure, and humidity
D) uses radio waves to determine the height of the ionosphere
C
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The difference between active and passive remote sensing systems is that
A. active systems emit their own energy while passive systems simply detect existing energy signals. B. active systems can operate throughout cloud or fog cover while passive systems require clear sky conditions. C. active systems involve the latest generation of satellites while passive systems use signals from older satellites. D. active systems include aerial photography while passive systems rely on satellite imagery.
Geostrophic circulation within a gyre is driven by ________
A) density and the wind B) gravity and the Coriolis effect C) temperature and pressure D) the wind and pressure E) salinity and gravity
A skydiver of mass 100 kg experiences air resistance of 500 N, and an acceleration of about
A) 0.2g. B) 0.3g. C) 0.4g. D) 0.5g. E) more than 0.5g.
If soil is bare or compact,
A) more water is stored than normal. B) runoff decreases. C) infiltration is poor. D) groundwater is recharged.