Question

The altitude at which water within the blood ""boils"" or changes into water vapor is known as __________ line.

Option 1:
Boiling

Option 2:
Vaporization

Option 3:
Dew

Option 4:
Freezing

Answer 1

The altitude at which water within the blood "boils" or changes into water vapor is known as vaporization line. Water boils at a lower temperature at higher altitudes due to lower atmospheric pressure.

Step-by-step explanation:

The altitude at which water within the blood "boils" or changes into water vapor is known as vaporization line. The boiling point of water is affected by the external pressure, and at higher altitudes with lower atmospheric pressure, water boils at a lower temperature. For example, in Denver, Colorado at 1600 m above sea level, water boils at about 95°C instead of 100°C at sea level.