Answer the following question given this paragraph: A compound is a unique substance that forms when two or more elements combine chemically. Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons. For a video introduction to compounds, go to this URL: http://www. youtube. com/watch?v=-HjMoTthEZ0 . Q: What type of reactions form compounds? A:
OPTIONS:
- mineral reactions
- consumption reactions
- physical reactions
- chemical reactions
chemical reactions

Answer the following question given this paragraph: In radio broadcasts, sounds are encoded in radio waves by changing either the amplitude (AM) or frequency (FM) of the waves. The encoded waves are broadcast from a tower and changed back to sounds by radio receivers. Q: What changes encoded waves which are being broadcast into sounds? A:
OPTIONS:
- transmitters
- amplifiers
- band receivers
- radio receivers

Answer: radio receivers

Question: Answer the following question given this paragraph: One of the most effective ways to cut metal is with an oxy-acetylene torch. Very high temperatures are obtained when acetylene burns in oxygen. Mixed 1:1 with oxygen, a temperature of over 3000C can be achieved. The amount of energy released is high the net heat of combustion is 1300 kJ/mole. Safety precautions need to be observed since the gas is very explosive. For welding and cutting, the oxy-acetylene torch is one of the best ways to go. Q: An oxy-acetylene torch is an effective way to cut what? A:
OPTIONS:
- coal
- wood
- plastic
- metal
Answer: metal

input with options: Answer the following question given this paragraph: Deer ticks are vectors for the bacteria that cause Lyme disease. The ticks are actually very small and may go unnoticed. Q: Deer ticks are vectors for the bacteria that cause what disease? A:
OPTIONS:
- Dengue fever
- malaria
- mad cow
- lyme
output: lyme

Q: Answer the following question given this paragraph: Erosion and deposition are responsible for many landforms. Erosion is the transport of sediments. Agents of erosion include flowing water, waves, wind, ice, or gravity. Eroded material is eventually dropped somewhere else. This is called deposition . Q: The process where eroded material is dropped somewhere is called? A:

OPTIONS:
- maturation
- diffusion
- diffusion
- deposition

A: deposition

Answer the following question given this paragraph: All living things are able to maintain a constant internal environment through homeostasis. Q: What process enables all living things to maintain a constant internal environment? A:
OPTIONS:
- peristalsis
- consciousness
- ketosis
- homeostasis
homeostasis