Location? chemicals in the lakes? the species that live in or surrounding the lakes? hope this helps :)
<h3>Short Answer: False</h3>
Long Answer: Yes, sort of. You do use a scanning microscope to start, as you will want to move the microscope to the correct location before increasing the magnification. However, you wouldn't use the scanning lens to see with high magnification.
The purity of the wavelength of a visual stimulus determines the perceived saturation, or richness, of the stimulus. Wavelength is the distance from the peak of one wave to the next. Stimulus is a change in the environment and the reaction of the organism to it is the response.