Answer:
D
Explanation:
Population of North America: 579 million
Population of South America: 422.5 million
Combined = 1.1 billion
Answer:
Welly solved the problem incorrectly. 66 is too small to be a solution to the problem.
Explanation:
sorry if wrong
Answer:
For low-mass stars, after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
Market economy because market economy means that business is almost entirely privately owned by the seller