Hi
<span>
They are : electric, solar, wind, and geothermal.</span>
The Gaia Theory was proposed. By the british.
1 million is 1 x 10^6
1 billion is 1 x 10^9
1 trillion is 1 x 10^12
So 12 trillion miles is 12 x 10^12 which converts to 1.2 x 10^1 x 10^12 = 1.2 x 10^13
Answer:
guns, germs, and steel
Explanation:
the three major elements that separate the world's haves from the have-nots are developing agriculture, living in areas without natural geographic barriers, and acquiring immunity to diseases.
