How does the harmattan contribute to desertification in the sahel? choose all answers that are correct. a. it blows rain clouds away. b. it erodes soil. c. it sparks fires. d. it spreads sand to other regions.

How do oceanographers measure the salinity of ocean water?

Stone mountain was formed during the formation of the blue ridge mountains around 300-350 million years ago and is considered part of the appalachian mountains. it formed as a result of the upwelling of magma from within the earth's crust. this upwelling, or solidified to form the that became stone mountain.

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.