Answer:
It basically means you can't see it with your normal eyesight. You have to use a telescope, or some other science instrument.
Explanation:
The answer is A because I am smart and I know
Agriculture accounts for 5% of gross domestic product, while The industry about 20% of tourism, the growing service sector is a vital source of income.
It has to be 1,2 or 4 im guessing 2