Question

Which of the following is not affected by a difference in air pressure?
P-Hurricane
Q - Tornado
R - Volcano

• A. Only P and Q
• B. Only Q and R
• C. Only Q
• D. Only R

Answer 1

The correct option is D Only R

Volcanoes erupt on their own and not because of a difference in air pressure. A pressure builds up in the earth’s crust and this is the reason why volcanic eruptions occur. Gases and igneous rocks shoot up during volcanic eruptions and splash over or fill the air with lava fragments. Whereas, hurricanes and tornadoes are affected by a difference in air pressure.