Applying a sunscreen with a sun protection factor (SPF) of 15 ...

[kshipps]

Applying a sunscreen with a sun protection factor (SPF) of 15 means that ___.
 a. your risk of sunburn is less by a ratio of 15:1
 b. your skin will take 15 times longer to burn than it would with no lotion
  c. you can be safely exposed to the sun over the next 15 hours
 d. your skin will take 15 times longer to tan than it would with no lotion
  e. you can be safely exposed to the sun in 15-minute increments

Question 2

Joanna works outdoors in the summer four hours each day. What method of protection from the sun would be best?
 a. applying continuous protection sunscreen once each day
  b. applying sweatproof sunscreen each hour
 c. applying water resistant sunscreen every two hours
 d. wearing protective clothing
 e. working only during midday hours

[meow1234]

Answer to Question 1

b

Answer to Question 2

d

[kshipps]

Gracias!

[lcapri7]

Thanks for the timely response, appreciate it