When the Air Is Dry, Tornadoes Can Remain Invisible Until

Q17: A tornado cloud that does not touch

Q18: The leading edge of a thunderstorm's cold

Q19: A group of thunderstorms that develop next

Q20: Most cloud-to-ground lightning flashes consist of a

Q21: A line of thunderstorms that forms ahead

Q23: The majority of lightning strikes occur _.<br>A)

Q25: The downdraft in an ordinary cell thunderstorm

Q26: Instructions: Choose one answer from each pair

Q27: A cloud-to-ground lightning discharge will sometimes appear

Q40: Thunder is caused by<br>A) the collision between