Apotential tornado that has not touched the ground is a 1. typhoon 2. funnel cloud 3. waterspout 4. thunderstorm

its still called a tornado but properly its called a funnel cloud.

A potential tornado that has not touched the ground is a 2. funnel cloud.

Typhoon is another name for hurricane, and hurricanes are different from tornadoes.

A waterspout is a rare phenomenon of a "water tornado". It's like a dust devil as it does not connect to the clouds above. A waterspout only takes place over a large lake, sea, or ocean.

We all know what thunderstorms are.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min