Answer: wi-fi
Explanation:
everyone can communicate no matter the distance and evryone is using it
The brain. Modern homo sapiens such as humans have much larger brain than the early homo sapiens due to the fact that food at the time was becoming scarce so the need for the homo sapiens to become smarter was a necessity. And because of this early homisapiens brains evolved to become much larger than what they were before
The last bubble is being cut off the screen, I don't know what the last option is.
Answer:
more agriculture and space and food
