If you were running a marathon, which type of muscle fibers would be most useful to you? A. slow-twitch B. fast-twitch, type I A C. intermediate-twitch, type II B D. slow-intermediate twitch, type I B

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