In-lecture quiz #3

1. Clouds and winds cause the minimum temperature to be higher and maximum temperatures to be lower than under clear skies and calm winds. The net effect is to reduce the daily range of temperature.
   
   
2. The pressure gradient force depends directly on the difference in pressure between two points and inversely on the distance between those points.
   
   
3. The rotation of the Earth causes a Coriolis force to act on objects moving around on Earth.
   
   
4. We have geostrophic balance when the Coriolis and pressure gradient forces on a wind are balanced. In the Northern Hemisphere, lower pressure is to the left of this wind.