SCIENCE
EARTH SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
low-pressure funnel clouds that spin clockwise
|
|
|
low-pressure funnel clouds that spin counter-clockwise
|
|
|
high-pressure funnel clouds that spin clockwise
|
|
|
high-pressure funnel clouds that spin counterclockwise
|
Detailed explanation-1: -The majority of tornadoes which occur are classified as a weak tornado. Usually a weak tornado will last for just a few minutes and have wind speeds of 100 mph or less.
Detailed explanation-2: -A condensation funnel is made up of water droplets and extends downward from the base of the thunderstorm. If it is in contact with the ground it is a tornado; otherwise it is a funnel cloud. Dust and debris beneath the condensation funnel confirm a tornado’s presence.
Detailed explanation-3: -The center of a tornado is characterized by low pressure, which is typically 10-20 percent lower than the surrounding air pressure. This pressure differential occurs over a very short distance, resulting in a large pressure gradient force that generates high wind speeds.
Detailed explanation-4: -Wall cloud: an area of rotating clouds that extends beneath a supercell thunderstorm and from which a funnel cloud may appear.