In pre-colonial Africa, government systems did not exist. True False

How is this even a question?

Answerencourage alternative timber sources,increase public awareness of the forests,increase research into forestry,involve local communities in forest projectsalso one of the main initiatives of the 1977 act was to introduce a new approach to forest management known as selective management system, this is recognised as one of the most sustainable approaches to tropical forestry management in the world

Because ours has not callosped, its working without the planets crashing into eachother, and the sun is the right distance away.

The answer to your question is d. convection currents. hope this you.