Which can change from one state of matter to another at the temperatures and pressures experienced at earth’s surface? a. carbon dioxide b. water c. nitrogen d. oxygen

You find a fossil that you are sure shows evidence of bipedalism. you know this because which of the following anatomical traits is present? a. thighbones that angle in toward the knees b. a narrow pelvis c. opposable hallux d. posterior position of the foramen magnum