Lower-mass stars such as the Sun do not have enough (hydrogen, mass) to become supergiants. You must choose which word from the parentheses fits in the sentence.

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Energy flows from the producer level to the level. is called