Acontinuous field of bluestem prairie grass is an example of what type of population?

May someone me with these science questions

•what conclusions can you make about the relationship between the volume of a gas and its temperature? • what conclusions can you make about the relationship between the volume of a gas and its pressure? • what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?

Sand is more likely than shale to preserve fossils. true false