When you blow some air above a paper strip, the paper rises. This is because
A. the air above the paper moves faster and the pressure is higher.
B. the air above the paper moves faster and the pressure is lower.
C. the air above the paper moves slower and the pressure is higher.
D. the air above the paper moves slower and the pressure is lower.
Answer:B
When you blow some air above a paper strip, the paper rises. This is because
A. the air above the paper moves faster and the pressure is higher. B. the air above the paper moves faster and the pressure is lower. C. the air above the paper moves slower and the pressure is higher. D. the air above the paper moves slower and the pressure is lower.