hey so a while ago i was feeling empty and then i didnt feel empty and now the emptiness is back again i just feel so crappy maybe im getting scarlett fever??(my sis has scarlett fever rn) id. k but it doesnt feel like that maybe its because i havent gone to in person school in 3 weeks? (b. c of snow days thay turn into virtual days) i mean dont get me wrong i love you guys(all my online friends and best friends) but maybe i just need actual in person interactions? i mean i go to gymnastics but none of those girls are my age their all at least 1 year younger but were all 2 grades apart(dont ask) so whats wrong with me?? why cant i just always feel happy?

Iwannasay c is the most accurate

The particles of the gas inside the ball heats up, bouncing off each other and spreading farther apart.hope my answer has you : )

Your answer would be the sun 

All these statements are related to drake's equation. it is a probabilistic equation that shows an aproximate number of civilizations in our galaxy that we can communicate with. all the numbers that are inserted into equation are not precisely known so the result varies from 1000 to 100,000,000. the equations was not created to calculate exact number of extraterrestrial civilizations but to increase scientific knowledge how to find them.the equation is: where: n=  represents the number of civilizations in our galaxy that we could in principle communicate with today.  the average rate of  star formation  in  our galaxy  the fraction of those stars that have  planets  represents the number of planets in the galaxy that are in principle capable of having surface liquid water and life.  essentially represents the probability that life eventually arises on a habitable planet.  represents the number of life-bearing planets in the galaxy.  epresents the total number of planets on which intelligent beings have evolved and developed a communicating civilization at some time in the galaxy's history.    essentially represents the probability that on a planet with life, some organisms will eventually evolve to the point where they can build radio telescopes.    is a factor that depends on how long civilizations that reach our level of technology are able to survive.