Which of the following is an example of physical change? a. crushing a soda canb. copper tarnishingc. baking a caked. mixing baking soda and vinegar

Which is true of a liquid? it has a definite volume but not a definite mass. it has a definite mass but not a definite volume. it has a definite volume but not a definite shape. it has a definite shape but not a definite volume.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

What causes most sediment to wash or fall into a river