The Enhanced Fujita scale is based on: Group of answer choices the frequency of lightning strikes concurrent with the tornado. the pressure gradient across the diameter of a tornado. the measured wind speeds inside a tornado. the level of damage caused by a tornado.

the level of damage caused by a tornado.

Explanation:

The Enhanced Fujita scale started being in use on February 1, 2007, after replacing the decommissioned Fujita scale introduced  by Ted Fujita in 1971.

This scale is typically based on the damages resulting from tornadoes  on structures and vegetation by an  estimation of the  tornado's  wind speeds.

Usually after a  tornado occurs, its related damage is analysed and rated from EF0 to EF5 according to its degree of damages by comparing to a compiled list of damage indicators, This gives an estimate of the  range of wind speeds the tornado must have produced.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.

it sounds like either a or c