Question

at the start of the ____________, about 10,000 years ago, humans began planting crops and domesticating animals. industrial revolution; agricultural industrial; environmentalism; agricultural revolutio

Explanation:

The Industrial Revolution started much later (around the 18th century), Environmentalism is a movement about environmental protection, and "Agricultral Industrial" (likely a typo) is not a standard term. The Agricultural Revolution (about 10,000 years ago) is when humans began agriculture and animal domestication.

Answer:

Agricultural Revolution