Final answer:
The statement 'Boiling is an upward water flow into the bottom of the cut' is false. Boiling involves the formation of vapor bubbles, not water flow, which rise due to buoyancy. Additionally, the boiling point of water increases with pressure and thus depth.
Step-by-step explanation:
The question 'Boiling is an upward water flow into the bottom of the cut' appears to contain a typo or be confusingly worded; however, boiling can be addressed from a physics perspective. The process of boiling refers to the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point. The way the question is phrased, 'an upward water flow into the bottom of the cut', does not accurately describe the process of boiling. Instead, in boiling, bubbles of vapor form at the bottom of the container (not simply water flow) and rise to the surface due to the buoyancy force overcoming the weight of the water above. Therefore, the accurate statement is that boiling involves the formation and release of vapor bubbles from the liquid to the surface, not an 'upward water flow'. Given this information, the correct answer to whether 'Boiling is an upward water flow into the bottom of the cut' would be (b) False.
As the vapor pressure inside these bubbles reaches the atmospheric pressure, they rapidly grow in size and detach, rising to the surface. Additionally, when considering the boiling point of water, at greater depths, the boiling point increases due to the higher pressure exerted by the water column above. For example, to reach a boiling point of 150°C, water would have to be subjected to significantly higher pressure than atmospheric, which would occur at significant depths below the water's surface at sea level.