CFCs were chemicals commonly used in refrigeration and as propellants in aerosol cans. In 1974, a research study discovered that CFCs were leading to a dangerous hole in the ozone layer. By the late 1980s most CFCs were banned as a result of the research. Which statement best describes a possible way that societal decisions were impacted by the 1974 research study? CFCs were commonly used in refrigeration. CFCs were replaced with other products. CFCs were causing a large hole in the ozone layer. CFCs were the focus of a research study.

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

Having health insurance means that a family cannot go bankrupt due to medical expenses. true or false?

John and jane jones’ newborn baby girl, leah, has just been diagnosed with galactosemia. prior to their genetic counseling appointment, they submitted this family history: john and jane’s older child, a son named lee, does not have galactosemia. john is the only child of hanna and harry. harry was an only child. hanna has two older sisters, hope (the oldest) and holly. both harry and hanna’s parents lived in good health into their 80s. jane’s brother, joe, is married to jen. they have a son, les, who is a healthy nine-year-old with myopia (nearsightedness) but no sign of galactosemia. jane’s mother, hilda, is alive and healthy; jane’s father, henry, passed away last year of a sudden heart attack. hilda and henry have no family history of galactosemia. use the information in the family history to construct a pedigree for this family.