Why Do Tornadoes Hate America?

What percentage of tornadoes globally occur in the United States each year?

• Less than 10%

• Between 20-40%

• Between 65-80%

• Over 90%

What is the function of the "convection cap" in the formation of tornadoes?

• It helps warm, moist air rise to form clouds.

• It traps warm, moist air near the ground, preventing it from rising.

• It brings cool, dry air from the Rocky Mountains.

• It triggers the initial spinning motion of the air.

What is a mesocyclone?

• A type of cold front that triggers tornadoes.

• A layer of hot, dry air that traps moisture.

• A persistent rotating updraft within a supercell thunderstorm.

• A funnel cloud that has not yet touched the ground.

Which two geographical features contribute to Tornado Alley being a perfect environment for tornadoes?

• Moist air from the Pacific Ocean and the Sierra Nevada mountains.

• Dry air from the Arctic and the Great Lakes.

• Moist air from the equatorial region and tall, wide north-south mountain ranges.

• Warm air from the Atlantic Ocean and the Appalachian Mountains.