I would say c
Have a great day hope this helps
"Lucy" is the name given by scientists to "<span>b. The earliest known human ancestor," since this refers to the specific skeleton of a human found in Ethiopia in 1794.
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In 1941 I hope this helps you!
When he saw the apple falling beside him, he start thinking : how and why the apple keeps falling down? What attracts the apple to the ground? After much research, he conclued that the Earth has a gravity like any planet or cosmic object. This gravity pulls objects towards the ground, allowing the existence of an atmosphere and preventing items from floating in the air. This scientific discovery has changed dramatically science in that time and it allowed us to invent machines that defy the law of gravity.
