Answer:
It contains 2 or 3 ppm of oxygen concentration.
Answer: C
SYNERGISTIC definition: relating to the interaction or cooperation of two or more organizations, substances, or other agents to produce a combined effect greater than the sum of their separate effects.
Answer:
convention currents in the earth's mantle
Explanation:
the convention currents move the plates and that is how plates move
I am certain your answer is true.good luck