Answer:
1) in
2) at
3) at and at
4) this?
5) at and or
6) at
i do not know if these are correct, you can double check lol
Answer:
physical effort is the use of action in attempting to do something.
mental effort is the use of the mind to attempting something.
Explanation:
example of physical effort is : attempting to saw down a tree.
example of mental effort is: attempting a quiz or a question in an exam.