3) Fog that is common along coasts , where warm, moist air over the water moves over land is a. radiation fog b.advection fog upslope fog. d. steam fog.

## Step 1<br />The problem is asking us to identify the type of fog that forms when warm, moist air over the water moves over land. This is a common occurrence along coasts.<br /><br />## Step 2<br />Let's go through the options one by one:<br /><br />### a. Radiation fog<br />This type of fog forms when the ground loses heat through radiation at night, cooling the air near the surface. This doesn't match the scenario described in the problem.<br /><br />### b. Advection fog<br />This type of fog forms when warm air moves over a cooler surface, such as when warm air from the ocean moves over cooler land. This matches the scenario described in the problem.<br /><br />### c. Upslope fog<br />This type of fog forms when air is forced up a slope and cools adiabatically. This doesn't match the scenario described in the problem.<br /><br />### d. Steam fog<br />This type of fog forms when cold air moves over warm water, causing the water to evaporate and form fog. This doesn't match the scenario described in the problem.