1. The Coriolis effect causes storms to rotate in opposite directions in the northern and southem hemispheres. This is due to: A. Winds only blowing to the west. B. Cold air sinking and hot air rising. C. The Earth rotating underneath the air. D. The difference between land and oceans.

## Step 1<br />The Coriolis effect is a phenomenon that causes the path of an object to be deflected due to the rotation of the Earth. This effect is responsible for the rotation of storms in opposite directions in the northern and southern hemispheres.<br /><br />## Step 2<br />The Coriolis effect is not caused by winds blowing only to the west, cold air sinking and hot air rising, or the difference between land and oceans. These factors are related to weather patterns and climate, but they do not explain the rotation of storms.<br /><br />## Step 3<br />The rotation of the Earth underneath the air is the primary cause of the Coriolis effect. As the Earth rotates, the air above it also moves. However, due to the Earth's rotation, the air does not move in a straight line but is deflected. This deflection causes the rotation of storms in opposite directions in the northern and southern hemispheres.