The answer is B: moist and hot with low density
The answer is c. Electron transport chain
The discovery of Lucy brought back to 3.2 million years the human presence on earth. She was found in Ethiopia in November 1974
It should be 2, but I'm not exactly sure
Well earth's density is 5.51 g/cm³....and Jupiter's density is 1.33 g/cm³....So add those together and you get 6.84 g/cm³
