Q: The presence of what stratospheric gas layer decreases the frequency of skin cancer and other damaging effects of ultraviolet radiation? Choices: - plasma - cumulonimbus - smog - ozone A:
ozone

Q: What causes lightning during a thunderstorm? Choices: - difference in wind - difference in elevation - difference in temperature - difference in charge A:
difference in charge

Q: Q: What do you call a science that aims to find solutions to practical problems? Choices: - applied experience - experimental science - evolved science - applied science A:
A: applied science

Question: Q: The shape of the path of an object undergoing projectile motion in two dimensions is a what? Choices: - orbit - circle - radius - parabola A:
Answer: parabola

*Question*
Q: What type of planet is jupiter? Choices: - a noble gas - a phantom - a red dwarf - a gas giant A:
**Answer**
a gas giant

Q: Q: What are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules? Choices: - carbons - acids - cells - proteins A:
A: proteins