What types of wavelengths are used to study shallow or deeper layers?

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Quick asap will give brainiest ! what best describes the same pattern of tides on earth throughout the day? neap tides spring tides semidiurnal tides nocturnal tides

People with one sickle cell allele are not likely to get malaria. what is this an example of?