Hardness is the answer I believe
Answer:
something that you invent?
Explanation:
A compound light microscope magnifies objects in steps.
An electron microscope is the type that was used to observe the first strands of DNA.
A compound light microscope contains a series of lenses.
A compound light microscope includes magnifying glasses.
An electron microscope creates a digital image.
A simple light microscope uses one lens for magnification.
The first law. Planets orbit is an ellipse with the Sun at one focus.
