He used single-lens microscopes, which he made, to make the first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
Answer:
WAT DA QUESTION????????????????????????
Explanation:
Answer:
The burning of fossil fuel
Explanation:
Coming from things like cars, planes, factories, or power plants.
