English
English, 26.03.2021 02:50, calvinclifton

A student is writing a research report for science class about sunscreens. Read the credible source the student found and the directions that follow. Source 1: “Understanding how Sunscreen Works” by Tim Sheib

People are exposed to ultraviolet radiation, or UV, from the sun whenever they are outdoors. Ultraviolet rays produce radiation at wavelengths that are shorter than light rays but longer than X-rays. Sunscreen is made to protect skin from the damage UV can cause and is made from a combination of chemicals designed to either reflect light away from the skin or to absorb the sun's rays so that they do not affect the skin. Sunscreens are designed to block two types of ultraviolet radiation. The first type of UV is the one that causes wrinkling and age spots because it affects the deeper skin layers. The second type of UV causes sunburns. Sunscreens are rated by their Sun Protection Factor, or SPF, which indicates how well the sunscreen will protect the skin and approximately how long it will take before the skin begins to burn. For example, SPF 20 sunscreen will prevent burning for 20 times longer than it usually takes a person's skin to burn with no protection at all. However, studies have shown that sunscreens with an SPF higher than 50 are not likely to offer more protection than a sunscreen of 50.

The student found another source. Read Source 2.

Source 2: “Ultraviolet Rays and Sunscreen” by Louie Benjamin

The sun produces ultraviolet radiation, which can have damaging effects on the skin. The redness and pain of sunburns is caused by the sun's invisible rays. In addition to sunburn, ultraviolet rays can cause age spots and wrinkling. The combination of ingredients in sunscreen can either reflect or absorb UV radiation and provide protection that is measured in SPF (Sun Protection Factor). The higher the SPF, the more protection the sunscreen provides. The type of sunscreen is also important since some kinds of UV can cause cell damage to the skin.

5. Which of the following sentences from Source 2 has information with gaps, or information that is inconsistent with the information in Source 1?

Question 5 options:

The sun produces ultraviolet radiation, which can have damaging effects on the skin. The redness and pain of sunburns is caused by the sun's invisible rays.

In addition to sunburn, ultraviolet rays can cause age spots and wrinkling.

The combination of ingredients in sunscreen can either reflect or absorb UV radiation and provide protection that is measured in SPF (Sun Protection Factor).

The higher the SPF, the more protection the sunscreen provides.

answer
Answers: 1

Other questions on the subject: English

image
English, 21.06.2019 15:40, simmy6
Which statement best summarizes the author’s claim?
Answers: 2
image
English, 22.06.2019 06:00, duhitzmay9395
Power going out story i need with a plot and the starting point is you wake up late, the power is out, and yeah. plz try to make it non complex since i have to write it in spanish
Answers: 1
image
English, 22.06.2019 07:20, goblebrandon
Read the excerpt from the time traveler's guide to elizabethan england. simon forman, who does attend plague sufferers, is a rare exception: this is because he has himself survived the disease and believes he cannot catch it again. however, his remedy amounts to little more than avoiding eating onions and keeping warm. he has a recipe for getting rid of the plague sores that will afflict you afterward if you survive the disease; but that is a very big "if.” it seems the best advice is provided by nicholas bownd in his book medicines for the plague: "in these dangerous times god must be our only defense.”which lines best summarize the excerpt?
Answers: 1
image
English, 22.06.2019 09:30, kashusledbetter
What is the main reason reverend thomas lane butts finds comfort in to kill a mocking bird?
Answers: 3
Do you know the correct answer?
A student is writing a research report for science class about sunscreens. Read the credible source...

Questions in other subjects:

Konu
Mathematics, 08.02.2021 18:50
Konu
Mathematics, 08.02.2021 18:50