Answer:
The earliest known life-forms on Earth are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 billion years ago, relatively soon after the oceans formed 4.41 billion years ago, and not long after the formation of the Earth 4.54 billion years ago.
Explanation:
It is Acceleration.
Explanation: You can probably find it in the back of your book in the definition.
<span>The correct answer for the first question is the third statement. Researchers developing prosthetic devices have recently discovered a way to fuse patients' nerves to robotic limbs. In number two, the correct answer is the second person in the choices. Hosni Mubarak resigned the presidency of Egypt as a result of "Arab Spring" demonstrations. </span>
D. The basic structure is the carbon atom
