C. wind
Explanation:
Wind is source of energy that does not produce any harmful emissions when used as an energy source.
Wind power is a renewable green source of energy produced by motions of the air around.
- Wind power is channeled into driving wind turbines to produce electricity.
- Combustion of natural gas releases carbon dioxide into the atmosphere.
- Coal and oil are fossil fuels that release toxic materials into the atmosphere too.
Learn more:
Greenhouse emission brainly.com/question/4580761
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The correct answer is: mineral deposits brought wealth and power
In the past, the African Kingdoms were really famous for their wealth. Their kingdoms were located near the source of mineral deposits which granted them a huge sources of ore such as metal and Gold. As their wealth increases, it's easier for them to obtain other things like armies and weapon which bring them more power
Do you have the photograph and landscape? That might help. :)