A sunscreen with a SPF of 30, when applied properly, protects against approximately of the sun's UVB rays.

A.30%
B.70%
C.97%
D.50%

In the category column, classify the following activities as either health promotion or health protection. if any of these actions fall under both the categories, write both. in the reason column, write down your reason for making each classification.

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing

Which of the following methods had the highest risk of transmitting hiv? a) oral sex b) sharing needles c) sweat d) preseminal fluid