To describe problematic sexual behavior, sexologists john bancroft and zoran vukadinovic prefer to use the more general descriptive term

As our current atmosphere formed, the concentrations of various atmospheric gases fluctuated. match each gas with the explanation that best describes how its proportion changed during the evolution of the atmosphere.

Josh is teaching michael how to be an effective speaker. what two general hints for effective informative speaking should josh share?

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.