Answer:
The second option: "Whoever wants to enter into a sled dog race today"
Explanation:
Proofreading is to check for any grammar mistakes and revisions, while the editing process is for checking for the word use, and how you organized your essay.
It looks like 2) "it" would need to be changed.
Answer:
Phone, Medkit and flash light
Explanation:
There's no spicific Natural Disaster so there's no spicific reason to choose "that" or "this"
Answer: "I tried several new foods on my trip: sushi, dragon fruit, and lychees." and "Diego studies three kinds of dance: jazz, modern, and tap."
Explanation: In the first and last sentences, there shouldn't be a colon (or any punctuation for that matter) between the verb (call/buy) and the direct object that verb takes (her grandmother, etc./seeds, etc.). In the third sentence, the colon should be placed after <em>collage</em> (it is not an item of the list that follows) and a comma should replace the colon before <em>and.</em>