Based on the information I was able to find I would say "Natural gases".
This is due to the reason it is burned to create heat for buildings which are used for several things we do daily such as cooking, heating, and electricity.
Kola Nuts sold as trade -west africa
niger one- west africa
salt- north africa
gold- south africa
A.) Place
Geographers begin to study a place by finding where it is on the map. Cardinal directions and longitude and latitude are used to find this.
