*Question*
The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.  To have less elephants, we should increase or decrease forests near them?
**Answer**
decrease

*Question*
Rougher surfaces have more friction between them than smoother surfaces.  If a surface were to be smoothed, it should encounter more or less friction?
**Answer**
less

*Question*
If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.  What would happen to the amount of ultraviolet radiation trapped in the atmosphere if the number of greenhouse gases were decreased more would be trapped or less would be trapped?
**Answer**
less would be trapped

*Question*
The closer the charged objects are, the stronger the electrostatic force.  If we have a static charged balloon and bring it close to your head less or more hairs will stand up?
**Answer**
more