Answer:
En 1953 determinó con exactitud la edad de la Tierra en 4.550 millones de años, con un margen de error de unos 70 millones de años.
Explanation:
I dont know lol I think vast weather changes such as global warming may cause extinction to species or adaptation to heat. But it depends solely on the lifeform
1. They have provided jobs to South African people. With the entrance of the mining company to South Africa, the Africans were able to find a job in this company.
2. The Anglo-American provides health education to the people. In this way, they can control their population favorable for the country. They have prevented the rapid spread of AIDS which is very prevalent in South Africa.
3. They have provided education to the Africans. The education system was improved upon the entrance of Anglo-Americans.
4. T<span>hey have improved the production facilities of the Africans. They have introduced their methods of production to African people.</span>
Answer:
planetesimal assembly
Explanation:
The accretion model, also known as planetesimal assembly, is what gives us the perspective for the formation of the astronomical objects via the process of accretion. Some of the astronomical objects that are formed by this process are the galaxies, stars, planets,and moons. The process of accretion represents the accumulation of particles into an object by gravitationally attracting more and more matter, mostly gaseous matter, forming an accretion disk.
Answer: A medium-mass star will become a white dwarf at the end of it's life cycle.
Explanation:
The life cycle of a medium-mass star (according to the picture, which I can attach for you if you want) is:
1. Interstellar Cloud
2. Protostar
3. Small Star
4. Red Giant
5. Planetary Nebula
6. White Dwarf
