Answer the following question given this paragraph: All combustion reactions are exothermic reactions. During a combustion reaction, a substance burns as it combines with oxygen. When substances burn, they usually give off energy as heat and light. Look at the big bonfire in the Figure below . The combustion of wood is an exothermic reaction that releases a lot of energy as heat and light. You can see the light energy the fire is giving off. If you were standing near the fire, you would also feel its heat. Q: All combustion reactions are what type of reactions? A:
OPTIONS:
- flammable
- geothermal
- reversible
- exothermic
exothermic

Answer the following question given this paragraph: The slope of a position-time graph represents velocity. The steeper the slope is, the faster the motion is changing. Q: What does the slope of a position-time graph represent? A:
OPTIONS:
- trajectory
- direction
- acceleration
- velocity

Answer: velocity

Question: Answer the following question given this paragraph: Q: What type of role does cartilage play in the human skeleton? A:
OPTIONS:
- variable
- important
- life saving
- insignificant
Answer: insignificant

input with options: Answer the following question given this paragraph: The pressure of a gas in a gas mixture is termed the partial pressure. Q: What is the pressure of gas in a gas mixture termed? A:
OPTIONS:
- gaseous energy
- gaseous pressure
- partial energy
- partial pressure
output: partial pressure

Q: Answer the following question given this paragraph: Q: What two microorganisms have different membrane lipids? A:

OPTIONS:
- microsporidia and bacteria
- mesozoic and bacteria
- algae and bacteria
- archaea and bacteria

A: archaea and bacteria

Answer the following question given this paragraph: There are about 10,000 living species of birds. Almost all of them can fly. Flying birds are classified in 29 orders. Most species belong to the order of perching birds. A few birds are flightless, such as the ostrich and penguin, but they evolved from a flying ancestor. Q: What important and unusual physical property (for birds) do ostriches and penguins share? A:
OPTIONS:
- waterproofness
- webbed feet
- bonelessness
- flightlessness
flightlessness