"The Bantu cleared the land, then fertilized it with ashes. When the land could no longer support their families, the Bantu moved further south. By 1110 B.C., the Bantu had spread their rich culture throughout central and southern Africa."

Which agricultural technique is described in this passage?
1. irrigation
2. terrace farming
3. slash-and-burn
4. crop rotation

Is it 3. slash-and-burn?

Yes. You're right.

Yes, the agricultural technique described in the passage is indeed slash-and-burn. Slash-and-burn, also known as shifting cultivation, is a traditional farming method where land is cleared by cutting down and burning vegetation. The ashes from the burned vegetation then serve as a source of nutrients for the soil, making it fertile for cultivation. After the land becomes less productive, the Bantu people moved to new areas and repeated the process. This allowed them to make use of fertile land while also letting the previously used land regenerate over time. So, the correct answer is 3. slash-and-burn.