Not really. Tornadoes can cause some soil erosion and, in rare cases, ground scouring, but overall they have very little effect on the shape of the land.
Tornadoes are generally funnel or cone shaped.
Tornadoes are generally considered a land based phenomenon. There are however waterspouts which are essentially tornadoes on water, though they are generally not counted as tornadoes unless the hit land.
Yes, tornadoes often change in appearance.
Tornadoes do not create landforms and do not have a significant impact on the shape of the land. In rare cases some exceptionally violent tornadoes may strip away a foot or two of soil.
Tornadoes most often form on land, but they can form over water.
Tornadoes cannot change the shape of the land.
They can, but most tornadoes happen on land.
Unfortunetely there is no real protection from Tornadoes of your land. It depends I guess how much land you have. Say you had 100 Acres, then it would be extremely hard to protect your land. Even still... unless you had a huge bubble put around your house and your land, Tornadoes can rip up everything in their path.
Antarctica is the continent that does not have tornadoes. Tornadoes typically form over land, so the cold and uninhabited nature of Antarctica makes it unlikely for tornadoes to occur there.
Tornadoes, by a considerable amount.
Tornadoes are commonly observed on the Great Plains.
Tornadoes generally form over land and whether they are on land or over water has little effect on their intensity. It is a hurricane that weakens as it hits land.