Answer:
Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig
Explanation:
The answer is B, use energy they take in from the environment to convert inorganic molecules into complex organic molecules.
A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics.
