MT Moderator's answer to Joy Quek's Primary 5 Science question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
MT Moderator
Premium Tutor
Mt Moderator's answer
325 answers (Tutor Details)
Answered by Jia Xing under the comments.
Joy Quek
Joy Quek
3 years ago
I know option 4 was marked wrong by tuition teacher. Just don't know what is the right answer.