An air sample in the lungs contains oxygen at 97 mmHg, nitrogen at 557 mmHg, carbon dioxide at 32 mmHg, and water vapor at 49 mmHg. What is the total pressure, in atmospheres, exerted by the gas mixture?

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

d.) circle motion requires a force to give it a centripetal acceleration.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

може ли да зареждате повече информация, моля