Can you give us options? We cant answer the question without the choices? if it is any equation you can just make one up?
The answer is this: In 2005, 27.99 males out of every 100,000 were diagnosed with melanoma. I did the quiz on Edge.
The answer is d your welcom
C. An increase in human population
Some molecule can pass through but others cannot because they are too large to pass through. This is also called selective permeability.