Answer:
are you are tagalog amp sorry i don't anther stand
Answer:
The correct answer is:
D. It fulfills a need to connect with others.
I think it would be a lack of access to specialists
Answer:
How we can calculate the concentration of oxygen in ppm in that chamber?): a) If we suppose that ppm are cm^3/m^3, we can calculate oxygen concentration as: V(O2)/V(total) = (209.5+x)cm^3/10^-3m^3.
Explanation: Got it from goggle