How many cells cover. texas east to west

Which of the following is evidence to the past existence of glaciers?

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

Which of the following are warning signs that a volcano will soon erupt? select all that apply a - earthquakes or tremors b - ground swelling c - color changes d - smoke plumes