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>
The answer is to fill different niches.
<span>Adaptive radiation is the process of development of new forms
of organisms from an ancestral species. <u>When an environment changes or some new
niches open, speciation from the ancestral species occurs. </u>New species have morphological and
physiological adaptations which allow them to exploit a whole range of
divergent environment.</span>
Answer:
The electromagnetic radiation per-unit- area increase by 42.65 times.
Explanation:
The radiation per-unit- area (P) is directly proportional to the fourth power of the temperature. Thus,
P ∝ T⁴
For, when the temperature is raised from T₀ to T₁ , the radiation per-unit- area is related to as:

T₀ = 900 K
T₁ = 2300 K

So,
<u>P₁ = 42.65 P₀</u>
<u>The electromagnetic radiation per-unit- area increase by 42.65 times.</u>
Explanation:
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