Homographs are words that are spelled the same regardless of pronunciation (they may be pronounced the same or differently). Homonyms are words that are both spelled and pronounced the same. Therefore a homonym is both a type of homograph and a type of homophone. To be correct I believe the Venn diagram should have one circle labeled homograph and the other labeled homophone. The intersection should be labeled homonym.
An Excessive Heat Warning is issued when heat indices are expected to reach at least 105 degrees, except at least 110 degrees over Delmarva and far southern New Jersey (Salem, Cumberland, Cape May, and Atlantic Counties).
A water heater should not be set beyond 125 degrees Fahrenheit. As temperatures over 125 degree fahrenheit can burn both children and adults quickly and severely, boilers must be locked at lower settings. Two seconds of exposure to water at 150 degrees will severely burn a child.