Answer:
option b or c I don't know
Answer:
4500 years old
Explanation:
Line up 50 to the graph on the y axis and it gives a x value of 4500
Homo ergaster may have been the first human species to leave Africa and fossil remains show this species had expanded its range into southern Eurasia by 1.75 million years ago. Their descendents, Homo erectus, then spread eastward and were established in South East Asia by at least 1.6 million years ago.Oct 30, 2015
Protons - positively charged (+1)
Neutrons - Neutral charge (0)
Electrons - Negatively charged (-1)
Protons and neutrons stay inside the nucleus, while electrons circle the outside.
