Original Project
Weather and Climate II: Seasonal Differences
Temperature variations in fluids such as air and water lead to currents that circulate the fluid, and this circu…
Item CL006002: Air currents form when warm air rises and cold air sinks.
What causes air currents to form?
- Air currents form when cold air rises and warm air sinks.
- Air currents form when warm air rises and cold air sinks.
- The rising and sinking of air does not create air currents. Air currents form when cold air moves along the surface of the earth toward warmer air.
- The rising and sinking of air cannot cause air currents to form. Air currents form only because of the rotation of the earth.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 2148 |
6–8 n = 1068 |
9–12 n = 1070 |
Male n = 1034 |
Female n = 1045 |
English n = 1824 |
Other n = 229 |
|
| A. | 24% | 24% | 24% | 22% | 25% | 23% | 28% |
| B. | 42% | 37% | 46% | 41% | 42% | 42% | 32% |
| C. | 22% | 24% | 20% | 23% | 22% | 22% | 22% |
| D. | 13% | 15% | 11% | 14% | 11% | 12% | 18% |