1 point
What is responsible for introducing oxygen gas into our atmosphere, and
significantly enhancing the carbon cycle?

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.

Which of the following is the scientific term for an organism that makes its food from inorganic materials? a.autotroph b.heterotroph c.embryotroph

Electrochemical cells provide energy by allowing electrons to flow through an external circuit to electrodes contained in an electrolyte