Which statements about tornadoes are true? Check all that apply.

About 12,000 tornadoes hit the United States every year.
A tornado looks like a funnel.
Tornadoes are deadly atmospheric storms that cause millions in damages each year.
Tornadoes can reach wind speeds of more than 300 miles per hour.
Kansas is the state with the most tornadoes.
You will always notice a funnel before a tornado strikes.

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

Where the main factor that enabled the growth of cities and civilizations was the existence of

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water