Answer:
Yali´s question: "Why you white man have so much cargo and we New Guineans have so little?"
Explanation:
This question from Yali, a Papua New Guinean political leader, led Diamond to develop his research published as Guns, Germs, and Steel (1997).
The question refers to the word cargo as New Guineans use it, meaning the goods brought by Westerners, which were considered as proof of the white man’s strength.
Yali’s question is actually about the roots of inequality.
It's C. The removal of water from aquifers.
4.6 billion years ago - most likely hydrogen (H2) and helium (He)
probably rich in hydrogen compounds like methane (CH4), ammonia (NH3), hydrogen cyanide (HCN), water (H2O), and formaldehyde (HCHO). Also some N2, CO2 but LITTLE or NO free oxygen.
Molecules of H2 and He move really fast, especially when warm, that they eventually all escaped Earth's gravity and drifted off into space.