Bill and Bob were two brothers. They were both pretty active, but Bill loved salty foods and red wine. He got dizzy one day and went to the doctor. Bill had hypertension. Bob, on the other hand was hypotensive. Which brother had a smaller chance of developing heart disease?
Ans: Bob

David was studying for his chemistry exam. To understand the elements of the periodic table better he categorized them into three groups, cat A, cat B, and cat C. In cat A he placed all the elements with atomic numbers lower than 83. In cat B he put the elements with atomic numbers from 83 to 94. Finally, in cat C he placed the elements with atomic numbers over 94. He found it easier to see their differences after he categorized them. Would cat B have longer or shorter half-lives than cat C?
Ans: longer

Toronto is home to one of the leading manufacturers of aerosol sprays in the country. Because of this, homes in Toronto often spray high levels of aerosol on a regular basis. In Saskatchewan, meanwhile, the local government enacted a ban on aerosol sprays several years ago, so their level of aerosol use is now essentially zero. Which city, Toronto or Saskatchewan, will be releasing more bromine gases?
Ans: Toronto

Two colleagues gave blood for an emergency. Ned got infected with HIV because they re-used a needle. His friend Nate was not infected. Which colleague didn't have a virus that causes Acquired Immunodeficiency Syndrome ( AIDS )?
Ans: Nate