Passage:
Scientists have long recognized that rates of melanoma are higher in areas that are closer to the equator or receive more sunlight, and that ultraviolet-B rays are the primary cause of sunburn and skin cancer. In this study, the authors developed a novel approach to measure an individual's sun exposure over a lifetime, taking into account where an individual has lived throughout his or her life. This information determines average annual UVB intensity - the average amount of ultraviolet-B rays that a person could be exposed to per year over his or her lifetime. The data led the researchers to conclude that a 10 percent increase in the average annual intensity was associated with a 19 percent increase in the individual's risk for melanoma in men and a 16 percent increase in women, at any age.
"We're learning more about the kinds of exposures that cause melanoma," said Thomas Fears, Ph.D., the first author of the paper and a scientist at the National Cancer Institute in Bethesda, Md. "The risk of melanoma is greatest for people who develop little or no tan. However, we've learned that where people live as both kids and adults and how much UVB shines in those places are important factors - regardless of tanning ability."
1. Which of the following are believed to be the primary cause of melanoma?
A. ultraviolet-A rays
B. ultraviolet-B rays
C. ultraviolet-C rays
D. gamma rays
(I think it is B since they talk most about the ultraviolet-B rays.)
2. According to the study, which group of people are at greatest risk for developing melanoma?
A. Men over 50
B. Women over 50
C. People who can tan easily
D. People who do not tan easily
(I think it is D form the second paragraph and the end of the paragraph of the first one.)
Any way please check to see if I am right.
Scientists have long recognized that rates of melanoma are higher in areas that are closer to the equator or receive more sunlight, and that ultraviolet-B rays are the primary cause of sunburn and skin cancer. In this study, the authors developed a novel approach to measure an individual's sun exposure over a lifetime, taking into account where an individual has lived throughout his or her life. This information determines average annual UVB intensity - the average amount of ultraviolet-B rays that a person could be exposed to per year over his or her lifetime. The data led the researchers to conclude that a 10 percent increase in the average annual intensity was associated with a 19 percent increase in the individual's risk for melanoma in men and a 16 percent increase in women, at any age.
"We're learning more about the kinds of exposures that cause melanoma," said Thomas Fears, Ph.D., the first author of the paper and a scientist at the National Cancer Institute in Bethesda, Md. "The risk of melanoma is greatest for people who develop little or no tan. However, we've learned that where people live as both kids and adults and how much UVB shines in those places are important factors - regardless of tanning ability."
1. Which of the following are believed to be the primary cause of melanoma?
A. ultraviolet-A rays
B. ultraviolet-B rays
C. ultraviolet-C rays
D. gamma rays
(I think it is B since they talk most about the ultraviolet-B rays.)
2. According to the study, which group of people are at greatest risk for developing melanoma?
A. Men over 50
B. Women over 50
C. People who can tan easily
D. People who do not tan easily
(I think it is D form the second paragraph and the end of the paragraph of the first one.)
Any way please check to see if I am right.