Which characteristic can be used to determine if an organism is living? A- size of the organism

B- ability to breathe oxygen

C- ability to respond to environmental changes

D- ability to move at various speeds

C

Explanation:

not all living things breathe oxygen, move, and are not all the same size, the only answer that makes sense is responding to environmental changes

i think its the first one

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.