No.
No... is that a joke...
The Tornadoes website offers a variety of information about tornadoes. These include: types and categories of tornadoes, weather conditions that signify tornadoes forming, and safety tips.
If general weather conditions favor the formation of tornadoes then a tornado watch is issued.
it had a negative affect in the farming economy if Africa
Tornadoes can destroy trees and animal habitats when they hit them.
what are the influences of subsistence farming
Different storm centers (National Weather Service as an example) have high tech radars to detect any tornadoes that are forming or are potentially able to form. Meteorologists know the conditions that contribute to the forming of any tornadoes.
Tornadoes can destroy animal habitats and kill or injure the animals themselves.
Humans do not cause tornadoes. While climate change may affect tornadoes, it is still uncertain how exactly this will play out.
No. Tornadoes come from thunderstorms, which form in the air. The tornado itself starts forming several thousand feet above the ground.
Strong tornadoes typically descend from a wall cloud.
Yes. Tornadoes themselves are small, intense centers of low pressure.