MCQOPTIONS
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| 1. |
Roofs are blown off when there is a strong wind because |
| A. | air in the room is at a lower pressure. |
| B. | moving air over the roof is at a lower pressure. |
| C. | moving air over the roof is at a higher pressure. |
| D. | moving air over the roof is at a lower pressure than the calm air under the roof. |
| Answer» E. | |