Help Please

Which sentence completes this diagram?

Match these milestones in communication history with their correct dates. 1. telegraph 2. telephone 3. radio 4. computer 5. television 6. computer networking 7. internet

The continents of africa and south america used to "fit together” like puzzle pieces. about how far back in time would you have to go to find the formation of the atlantic ocean? 600 million years 430 million years 200 million years 90 million years

(25pts) this photograph represents the chinese government’s response to a challenge it faced. what challenge do you think this is? what steps might china have taken to address this challenge?