Is a light compound 2d or 3d

Explanation:

Stereo 3D microscopes produce real-time 3D images, but they are usually limited to low-magnification applications, such as dissection. Most compound light microscopes produce flat, 2D images because high-magnification microscope lenses have inherently shallow depth of field, rendering most of the image out of focus.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

yes, because even though a theory has a  lot of evidence to support it, it is not always true