PLEASE HELP THIS IS DUE IN 15 MINS thuy was learning about mid-ocean ridges and how they spread, creating more land. She wondered why Earth doesn’t keep growing bigger and bigger because of the new land. She learned that the reason Earth isn’t expanding is because of the many a. (a. trenches / b. mid-ocean ridges / c. mantles / d. subduction areas)
that occur at ocean
(a. mantles / b. trenches / c. mid-ocean ridges / d. subduction areas).