A sunscreen with a higher SPF value protects the skin longer. John was analyzing some of the results from his sunscreen study. He found that a higher SPF protects the skin Shorter or Longer?
Longer

For a given medium, sound has a slower speed at lower temperatures. If Mary is playing music in her room and the heater stops working, causing the temperature to fall, what happens to the speed of the soundwaves her radio is generating increases or decreases?
decreases

Q: The sooner cancer is treated, the greater the chances of a cure. Compared to a person who chooses to start right away to undergo cancer treatments after being diagnosed, would a person with the same cancer who undergoes treatment a long time after learning of their diagnosis be less likely to be cured? or more likely to be cured?
A: less likely to be cured?

Question: The stratosphere contains the ozone layer, the temperatures increase as altitude increases. When in the stratosphere, Dean can tell that the temperature is getting warmer as the altitude he is at increases or decreases?
Answer: increases

*Question*
The planets further from the Sun will have bigger orbits, and therefore take longer to revolve around the Sun. Jupiter has a much larger orbit around the Sun than the Earth does. This means that which planet takes more time to go around the Sun Jupiter or Earth?
**Answer**
Jupiter

(Question)
Pigments in the skin act like a filter that can prevent the skin from making vitamin D. As a result, people with darker skin need more time in the sun than people with lighter skin to make the same amount of vitamin D. Two friends are headed to the beach, Mike and John. Mike is white, and John is black. Both want to make the same amount of vitamin D through sun exposure. The person who will take longer to make the amount of vitamin D is Mike or John?
(Answer)
John