What are the three vegetation zones of west Africa?

1. The mangrove swamp zone: located along the coast of West Africa, it comprises saline coastal wetlands and consists mainly of salt-tolerant plants like mangroves and other saline-adapted vegetation.

2. The rainforest zone: this lies just north of the mangrove swamp zone and is characterized by dense, evergreen forests. The rainforest is home to a diverse range of plant and animal species. Common rainforest trees include mahogany, iroko, and ebony.

3. The woodland-savanna zone: this zone lies north of the rainforest and is characterized by a mosaic of grasslands and trees. The trees are typically shorter than those found in the rainforest, and the grasses are often tall and dense. Common woodland-savanna trees include baobab, acacia, and shea.