It would be B, so yeah hope that helps ya ;)
It was created about 6,000 years ago
Answer:
8 to 8.5 since that is the recommended and people usualy sleep more than that
If two gases with pressures of 2 atm and 3 atm are mixed at constant temperature, the total pressure will be the sum of the two pressures. Therefore the answer is D. 2 atm + 3 atm or 5 atm will be the total pressure of the gas mixture.