Amy is testing different designs of paper airplanes to find out which 8P type paper airplane can glide for the longest amount of time. She plans to lightly toss each paper airplane and measure the time it takes for each plane to reach the ground. Which of the following instruments should Amy use to measure time in this experiment?​

a. they are both space stations

happy to

pls mark as brainliest.

i'm assuming that the correct answer is indeed the first one/ "a"..

the dependant variable is spilled water

the independent is the heat

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?