Vapor pressure and flash point are two of the primary indicators for flammability. Which combination indicates a higher degree of flammability?: High vapor pressure, low flash point High vapor pressure, high flash point Low vapor pressure, low flash point Low vapor pressure, high flash point

The combination that indicates a higher degree of flammability is High vapor pressure, low flash point.

Here's why:

1. Vapor Pressure: High vapor pressure means that the substance easily evaporates at normal temperatures. The more vapor a substance has in the air, the more likely it is to catch fire.

2. Flash Point: The flash point is the lowest temperature at which a substance's vapors can ignite in the presence of an ignition source. A low flash point means that the substance can ignite at lower temperatures.

Therefore, a substance with a high vapor pressure and a low flash point would be more flammable because it produces a lot of vapor that can ignite at low temperatures.