Jake and his son Ryan just had their yearly physical examination by the doctor. As part of this year's examination, both men had their arterial walls examined to identify the presence of plaques. The doctor discovered that Jake had a high amount of plaques present on the interior of his arterial wall. Ryan, on the other hand, had no plaques present. Who is more likely to have lowered oxygen supply to their heart muscles?
Ans: Jake

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. Which category would more likely show radioactive decay, cat A or cat B?
Ans: cat B

High lake had a lot of fresh and salt water mixing, therefore presented layers of stratified water.The water was poor in nutrients.Low lake had no such problems and it was a very abundant and prolific fishing spot. Which lake had more dissolved nutrients?
Ans: Low lake

Tho towns located on opposite banks of a river, had a humid season, but Bend town had a cooler air at night. Bank town on the other hand, had warmer nights because it was situated on a south facing hill. Which town experienced a lower air mixing ratio?
Ans: Bank