Chemistry, 26.07.2019 15:30, janeou17xn
Alightweight material is being tested for effectiveness in blocking ultraviolet (uv) rays from the sun that cause skin to burn and possibly develop skin cancer. which method would be most for testing this material? use specialized equipment to measure how much uv light passes through stacks of one, five, or 20 layers of the material. test the material in controlled natural settings by using natural uv light, and measure the uv light that passes through. write a survey that asks people on beaches about their preferences for sunscreen and protective materials. test the material in a lab setting by using humans and a variety of uv light sources, and develop a scale to measure the damage that is caused to human skin.
Answers: 2
Chemistry, 21.06.2019 15:40, nadinealonzo6121
Which of the following might a chemist choose to study? a. glacier movement in alaska b. better ways to recycle plastics c. the effects of hurricanes on turtle populations d. the vibrations in bridges caused by big trucks
Answers: 2
Chemistry, 22.06.2019 04:30, rosetoheart2
What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics
Answers: 1
Alightweight material is being tested for effectiveness in blocking ultraviolet (uv) rays from the s...
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