Which is the layer underground where there are no empty spaces for water or air to fill in? O A. Zone of aeration
O B. Zone of saturation
O C. Impermeable rock
O D. Water table

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