Gaul was added to the roman empire under Caesar's h
- a durable incandescent material
- elimination of air from the bulb a better vacuum
- a filament material of high resistance
A. Social Activities of the Coastal Plains B. Economic Factors of the Central Plains C. Characteristics of the Mountains. D. Basins Climate of the Great Plains
C
The first human ancestors appeared between five million and seven million years ago, probably when some apelike creatures in Africa began to walk habitually on two legs. They were flaking crude stone tools by 2.5 million years ago. Then some of them spread from Africa into Asia and Europe aftertwo million years ago. I hope this helps
