The central idea of this is how he warned everyone that the british are comming
Answer: Internal clocks is how they manage their time in their mind. School schedules is a set time.
If the question is in what sentence do you see a predicate adjective, then the correct answer is in the first one - Not all deserts are sweltering, where the word <em>sweltering </em>is a predicate adjective.
A predicate adjective is an adjective that can be found following a verb.
