<span>A chemical injury that immediately causes a rash, a burn, or irritated
airways resulting in coughing and sneezing can be known of one or two
things. This type of chemical injury can
be known as a chemical burn. Or, this
type of chemical injury can also synonymously be known as a caustic burn.</span>
Answer:
The quote from the passage which speaks to the schools need for cash is found in the third paragraph.
It reads "<em>It's part of the effort for school districts to make money in these budget-strapped times"</em>
Explanation:
To be budget-strapped means to be working to execute a project (either one-off or recurring) on a very tight budget (or less cash than is required).
The quote is from the article by Carol McGraw on how school bus ads are bringing in some revenue to the schools in the district.
The quote above is corroborated by the statement of the spokeswoman in the 6th paragraph who mentioned that allocations totally eleven million dollars have been cut over the years whilst conversely the amount of tax they have to pay has also increased.
Cheers!
D - Adverb, because "must" modifies the verb "have".
