About 95 per
cent of Rwandans work on their land in subsistence agriculture,
growing crops for their use. The main crops are sorghum, maize,
sweet potatoes, dry beans and plantains (green bananas). The average
farm plot is getting smaller and is now less then 1 hectare.
relies heavily on one main export crop, coffee. Other export crops
include tea, sugar and pyrethrum (a natural insecticide). Most industries
involve the processing of coffee or tea. The country has small deposits
of tin, beryl (a precious stone), tungsten (a rare metal) and other
minerals. Natural gas deposits beneath Lake Kivu are believed to
be among the largest in the world, but these are just starting to
be used. Rwanda's deteriorating roads, rugged terrain and distance
from the sea make economic growth difficult.