Answer:
An organ is a part of the body that carries out its main function. Most organs are made out of tissues.
Explanation:
Answer:
Option A
Explanation:
They are portable resources that convert chemical energy to electrical energy
Answer:
Explanation:
A pinhole camera is a simple camera without a lens but with a tiny aperture, a pinhole camera – effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.