The following that is not a result of heavy use of irrigation water is C. Increasing in soil fertility.
Answer:
What does not have matter?
1) light
2) heat
3) sound
4) energy
*Note: Air dose have matter because if you blow air into a balloon it gets bigger
Explanation:
Light microscopes can be used to observe any type of object, but using an electron microscope to look at metallic objects would damage the microscope.
Light microscopes can be used to observe live specimens, but preparing a specimen for electron microscopy would kill it.
Light microscopes have much higher magnification power than electron microscopes, as long as a high resolution image is not needed.
Its when the muscles run out of oxygen because your doing an activity really fast so the body doesnt have time to get oxygen to your muscles. Anaerobic respiration starts which doesnt need oxygen