The Chemical equation representsreaction

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?