Yes, a tornado is not considered a tornado unless it reaches the ground.
i believe roughly 70% (not completely sure though) I'm not really sure, but something like 70% of the earths surface..
well this. is because the earths surface is really low due to the equator.
a earthquake can really start anywhere but it is usually started at the earths core (middle). Other names are the epicenter which is were the earthquakes starts at the earths surface. The focus is where it begins inside the earth.....
i think that they are really good and this girl named mira is so cool i know her because its me
Ground waves are radio waves which travel along the earths surface while sky waves use the earths ionosphere to reflect signals to the desired destination
no not really
They tends to block incoming solar radiation, thereby cooling the surface. They don't really impact Earth's longwave radiation.
really really really really hot
For the most part, yes. (There are exceptions, of course.)
I really really really really really really really do not know
The World Ocean.
Some streams or rivers can go really fast through plateaus and stuff, on the way they can wash the sediments and rocks that were there before. This causing erosion.