Which of these characteristics did early people control in order for agriculture to expand?

access to clay

access to water

good weather

better seeds

The colors at sunset are usually the result of raindrops

Where do the majority of cases heard by the supreme court originate?

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.