Match each item to the time it best represents. 1. humans began using stone tools
Industrial Revolution
2. birth rates declined, and the average life expectancy increased
1999
3. the world population totaled six billion people
Paleolithic Era
4. the annual population growth rate reached its peak
late 1960s

I think the answer is either 4 or 2, I'll tell you my confirmed answer in explanation

Explanation:

4. In 1968 was when the population growth rate met it's peak

1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office

answer: alexander hamilton

explanation: alexander hamilton was george washington's right hand man. he took an early role in the militia as the american revolutionary war began. in 1777, he became a senior aide to general washington in running the new continental army.