How do you dry specimen that would be view under scanning electron microscope

What type of specimens where you able to see under each of the microscopes in the microscope activity

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Construct at least two possible hypotheses for the student’s experiment.