rainy seasons (February to April, rainy season (October to March), dry season during northwest monsoon (March to June); cool, rainy monsoon (June to October); slight seasonal temperature variation Terrain: volcanic formation with mostly rolling highlands; low coastal plain; savanna in east Natural resources: negligible Land use: arable land: 32% permanent crops: 4% meadows and pastures: 3% forest and woodland: 1% other: 40% Irrigated land: 8,400 km2 (1989 est.) Environment: regional
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