if its supposed to be a true or false? it should be true.
<span>Lightning rods are a necessity for radio towers and skyscrapers.
This is the topic sentence, because it's clear from this that the paragraph will discuss lightning rods and why they are necessary for radio towers and skyscrapers to have. It is broad enough to open the paragraph but also specific enough to give preview and some detail. </span>
the pyrotechnics when off when the football team came out of the locker room