The water starts boiling at 100°C and at this stage all the water will be converted into vapor which is not possible as the temperature of water never reaches 100°C.
It has low vapor pressure and low volatility. Example: More petrol will be converted into vapor as compared to water at the same temperature.
hence, this property of water allows it to remain in liquid state and not being dried out during summers.
I think the correct answer from the choices listed above is option B. You can find methanogens in the human intestines. These organisms can work with or without oxygen. Too much of oxygen for them is toxic. They are obligate anaerobes.
