It is data that has been collected for a particular reason but then that data is used for something else
Answer:
a. on
b. I don't think here a preposition is needed as "This is the key to my room" is a complete sentence.
c. in
d with
Hope it helps!!
Have a nice day:)
Answer:
The last option
Explanation:
He's trying to hint on the fact that composting can help in changing the environment.
I say it is probably b because law is a list of rules to go by ladder don’t really know but pretty sure it doesn’t mean that I’m assuming it is b because we learned that a long time ago but don’t know if it the same meaning for you
