Question

1. what change, if any, should be made to sentence 1?

sentence 1:
the national oceanic and atmospheric administration has put out a great online resource about tornadoes.
change national oceanic and atmospheric administration to national oceanic and atmospheric administration
insert a comma after administration
change resource to resourse
no change needs to be made to sentence 1.
clear all

Explanation:

The National Oceanic and Atmospheric Administration (NOAA) is a proper noun. Proper nouns are capitalized. In the original sentence, "national oceanic and atmospheric administration" should be capitalized as "National Oceanic and Atmospheric Administration".
Inserting a comma after "administration" is incorrect as it disrupts the flow of the sentence. "Resourse" is a misspelling; the correct word is "resource". Since the first option corrects the capitalization of the proper noun, the other options are wrong.

Answer:

Change national oceanic and atmospheric administration to National Oceanic and Atmospheric Administration.