Greater use of oil and other fossil fuels causes more pollution.  Mike is looking at two cars to buy. The first car, a Toyota, uses twice as much oil and fossil fuels to run, compared to the Kia he is looking at. If Mike wants to buy the car that causes less pollution, he should buy the Toyota or Kia?
Kia


As the water is pumped out, the water table slowly falls, requiring wells to be dug deeper, which takes more money and energy.  Milo loves to dig wells for a living. If he needs to dig a well deeper to reach water, what does that do to the money and energy it takes to dig the well increases or decreases?
increases


Q: Rougher surfaces have more friction between them than smoother surfaces.  A piece of sandpaper has more or less friction than a piece of glass?
A: more


Question: When two skateboarders push against each other, it causes them to move apart. The harder they push together, the farther apart they move.  When you use less force to move a car it will move less or move further?
Answer: move less


*Question*
The more charged the objects are, the stronger the electrostatic force between them.  If an object gains more charge, it will lose or gain electrostatic force?
**Answer**
gain


(Q).
This is also called diffusion, and the process is much faster in gases than in liquids, because the particles in gases are further apart.  Will induces diffusion in a gas and a liquid. The gas likely diffuses much faster or slower?
(A).
faster