Q: In the larger container we will still have the same number of gas particles, but now they are filling a much larger space. If Jim has a container of hydrogen gas that is 40 liters in volume and he moves the gas to a container that is 50 liters in volume, what happens to the density of the gas increases or decreases?
A: decreases

Q: The more efficient a device is, the greater the percentage of usable energy it produces. A very efficient pair of solar panels will produce little energy or a lot of energy?
A: a lot of energy

Q: 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 more elephants, we should increase or decrease forests near them?
A: increase

Q: The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away. What would happen to the speed of Earth's orbit if our planet were to move closer to the Sun increased speed or decreased speed?
A: increased speed