For a given medium, sound waves travel more slowly at lower temperatures. John was watching the sound waves in his electronic monitor when he noticed something. The speed of the sound waves was slower when the temperature was higher or lower?
lower

Areas near the equator are warmer than areas near the poles because they receive more direct sunlight. A person moving south from the North Pole will receive more or less direct sunlight?
more

Q: In general, the farther away from the Sun, the greater the distance from one planets orbit to the next. When we look at the solar system planets are more far apart closer to the sun or farther from the sun?
A: farther from the sun

Question: The older a person is, the greater their chance of developing a cardiovascular disease. Derek's dad was now at a reduced risk of getting a cardiovascular disease, even though nothing about his lifestyle or diet changed. The thing that did change is that his dad is now considered to be at a larger age or smaller age?
Answer: smaller age

*Question*
Water becomes more dense when it is colder and when it has more salt. When water freezes into ice it becomes less dense. or more dense?
**Answer**
more dense

Q: Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree. Jim is a smoker. If he suddenly quits smoking cigarettes the amount of oxygen available in his lungs increases or decreases?
A: increases