What does you question mean exactly?
The sentences in the passage that contains misspelled words are sentences number 4 and number 5. The word misspelled in number 4 sentence is "adolescant". The correct spelling for this word should be "adolescent". And in number 5, the misspelled word is the word "summers". The correct term that is appropriate in the sentence would be "summer" only.
Answer:
verify if they meet a certain standard
Wasting water is bad because LEDC's do not have that access to water - subsequently, we could provide water for them instead of us wasting it
Answer:
A good topic might be something that can be medical research that you can keep going on about
