A) 2 is the correct answer
Explanation:
The given data is as follows.
Pressure of moist hydrogen gas = 1.018 atm
Pressure of water vapor =
= 0.0421 atm
Formula to calculate the pressure of dry hydrogen gas is as follows.
Pressure of
gas = 
Now, putting the given values into the above formula as follows.
Pressure of
gas = 
= 1.018 atm - 0.0421 atm
= 0.976 atm
Therefore, we can conclude that partial pressure of hydrogen gas in the given sample is 0.976 atm.
A) would be the only correct one from my knowledge. Mutualism is when neither Organism is harmed and both live mutually together, and Parasitism is when an Organism is living on the, ex. nutrients, of the host.
Answer:
B. Geological Events and Lifeforms
Explanation:
The Earth's Geological time scale is mostly based on Geological Events and Lifeforms.
The Geological time scale provides a division of events on the earth into several time frames.
Each of the time units are based on events through the Earth's history and evolution of life.
The events are often recorded in rock strata and also as fossils which are the preserved remains of organisms.