Answer:
The first question is - by immunization.
The second question is - sequencing
Explanation:
For the first question, simply read the paragaphs. It will list all the symptoms of polio. The answer choices are all symptoms of polio except one, hence we can decipher that polio can be prevented by immunization (not by the symptoms).
For the second question, I know this answer through background knowledge. Recipes are commonly formated in steps (1. 2. 3., etc) which is also called sequencing. Hence, we can deduce that recipes are in a sequenced format.
Hope this helped. Let me know if you need anything else!
