It is unclear what is meant by this questions. Tornadoes fall pretty clearly into the field of meteorology. If you are asking about a tornado that does not occur on a plain or a field; tornadoes are not significantly affected by small surface features. A tornado can go over trees, buildings, hills, and mountains without being significantly affected.
No. The eye of a tornado is a calm, clear area at the tornado's center.
There is not opposite of a tornado, except perhaps a clear day with no wind.
There's nothing, its clear and calm
The weather usually clears after a tornado because most tornadoes form in the rear portion of a thunderstorm.
Since a tornado is a form of weather, it would be studied in the field of meteorology.
It is believed that some tornadoes have a calm, clear center similar to the eye of a hurricane. This is caused by the winds spinning so fast that they cannot reach the center. Aside from that it is neither calm nor clear in a tornado.
A tornado that stays in a field would be rated EF0 as currently there is no Standford for rating tornado damage to crops.
Generally not. In most cases a tornado would not cover more than a football field or two. Occasionally a tornado may be large enough to engulf a small town.
Within the funnel it looks like a very thick, fast-moving fog. The center of the tornado may be clear, giving the appearance of a tube.
It depends on the tornado and where it hits, though typically damage will not exceed more than a few thousand dollars worth. Sometimes a tornado will stay an an open field and cause no damage at all.
This is false. To form a tornado you need a large, powerful thunderstorm, usually a supercell. Because of this the sky will be overcast and often quite dark. Skies off to the sides of the storm may be clear.
Dust Tornado is a Normal Trap Card. It destroys one Spell or Trap Card on the field, then you can set 1 Spell or Trap Card.