I'll try to explain, because I've had tubes before. In fact, I still have them.
For me, tubes were put in because of too many ear infections, and excessive water in my ear. The tube helped drain the water out. You can see A picture I have in a file. The tubes can be put I believe in the ear drum. They're put there to help drain water that has trouble getting out on its own.
The answer is a COMPOUND MICROSCOPE.
Compound microscopes are illuminated. the image seen with this type of microscope is two dimensional.
The salt evaporates in the air thus when it hits the ground
Answer:
B because each of the things described have to do with plants