Is testing for fingerprints on a door a physical or chemical change

Dusting for fingerprints makes use of the physical property of stickiness. Skin oils absorb the fingerprint dust, which is then collected on a sticky tape.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.