What would happen to the world if group 3 elements disappeared?

Adozen is 12, and your needing to calculate the weight of one medium egg, so i would do 21/12=1.75 per egg, and check your answer by doing 1.75 * 12= 21 : ) : ): ): ): ) i hoped i

Afraidsugar lol it’s the third one

Iread all the questions and answers, that person done a lot of work so go ahead and give them brainliest!

The answer is neonhope it