1. How long our ancestors have been using stones as their tools?
2. Our ancestors have been experiencing Bronze Age for
3. Telegraphy replaces telephone (true or false) -
4. Electricity emerged during 1600 A.D. (true or false)
5. Radar was discovered before the computer (true or false) -
I'LL GIVE 15 POINTS, PLEASE DO HELP ME
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1. 3 million years ago
2. The Bronze Age lasted from roughly 3300 to 1200 B.C.
3. True
4. False
5. True