Answer:
B- gravity
Explanation:
Gravity is a force in which everything in the universe is trying to pull everyother thing towards themsef. Here, the sun's gravity keeps the planet in orbit.
I hope im right! !!
In the blank there will be WAVELENGTH.
In a longitudinal wave, the WAVELENGTH is the distance from one compression to the next compression or from one rarefaction to the next rarefaction.
i think A but if I'm wrong sorry
then if increasing then becoming spread out so letter A
Answer:
Noble Gases
Explanation:It's not on there but Noble gases is the least reactive element because it has 8 electrons and their outer energy is full.