How does the author develop the central idea over the course of the text?

Responses

by highlighting the effects of urbanization on the number of gao trees in Niger

by highlighting the effects of urbanization on the number of gao trees in Niger

by describing how farmers in Niger protect gao trees from harsh drought conditions

by describing how farmers in Niger protect gao trees from harsh drought conditions

by focusing on government efforts to plant more gao trees throughout Niger

by focusing on government efforts to plant more gao trees throughout Niger

by explaining how farmers in Niger are transforming the environment with gao trees

by explaining how farmers in Niger are transforming the environment with gao trees