A renewable energy source is a natural resource on Earth that can be naturally replenished in a short period of time. Wind is considered clean and renewable because it will not produce harmful pollutants or emissions and won't harm our ecosystem!
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Space exploration is addressing the outer space, its about exploring the universe and finding an answer to some unanswered questions.
For any country to be the first to reach outer space is a proud moment. It helps them to expand their technology, it helps them to promote connection with countries of the world.
For example, United States was the first county who put the first man, Yuri Alekseyevich Gagarin into the space. This was the great achievement for United States. Their connections with other powerful countries grew.
And which is why it is important for a country to be the first to reach outer space not only to achieve success, but also so that they can provide the world with new information, and details about the outer space.
I think the answer is c I hope this helps
I believe D. is the correct answer
One of the two main differences between the governmental structure of the Songhai kingdom and Ghana and Mali is that Songhai was divided into five provinces, while Ghana and Mali had strong central governments.
