30 points plzz ! pruitt lives in a city that is typically dominated by a maritime tropical air mass. after listening to the weather update, he learns that a maritime polar air mass is approaching his city. which statement explains this movement of air? a. air masses move from west to east in the northern hemisphere. b. air masses move from colder areas to warmer areas. c. air masses move from high-pressure areas to low-pressure areas. d. two air masses merge into one and share the properties of both original air masses.

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !