Question

Given are three natural phenomena - hurricane, tornado, volcano. Which of the following is not caused by a difference in the air pressure?

• A. Only hurricane and tornado.
• B. Only tornado and volcano.
• C. Only tornado.
• D. Only volcano.

Answer 1

The correct option is D Only volcano.

Volcanoes erupt due to the pressure developed in the Earth’s crust due to molten rock fluid called lava.
Hurricanes and tornados occur due to difference in air pressure. Hurricanes and tornados are the same phenomena. Tornadoes usually occur over land, while hurricanes almost always form over the ocean.