Q: What changes encoded waves which are being broadcast into sounds? Read this paragraph and choose the correct option from the provided answers: 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. Choices: - transmitters - amplifiers - band receivers - radio receivers A:
radio receivers

Q: An oxy-acetylene torch is an effective way to cut what? Read this paragraph and choose the correct option from the provided answers: 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. Choices: - coal - wood - plastic - metal A:
metal

Q: Q: Deer ticks are vectors for the bacteria that cause what disease? Read this paragraph and choose the correct option from the provided answers: Deer ticks are vectors for the bacteria that cause Lyme disease. The ticks are actually very small and may go unnoticed. Choices: - Dengue fever - malaria - mad cow - lyme A:
A: lyme

Question: Q: The process where eroded material is dropped somewhere is called? Read this paragraph and choose the correct option from the provided answers: 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 . Choices: - maturation - diffusion - diffusion - deposition A:
Answer: deposition

*Question*
Q: Atoms of what element ultimately form in a red supergiant? Read this paragraph and choose the correct option from the provided answers: In a red supergiant, fusion does not stop. Lighter atoms fuse into heavier atoms. Eventually iron atoms form. Choices: - gold - steel - coal - iron A:
**Answer**
iron

(Q).
Q: What is in the soil that causes mars to look red? Read this paragraph and choose the correct option from the provided answers: Viewed from Earth, Mars is red. This is due to large amounts of iron in the soil. The ancient Greeks and Romans named the planet Mars after the god of war. The planet's red color reminded them of blood. Mars has only a very thin atmosphere, made up mostly of carbon dioxide. Choices: - carbon - garnet - sand - iron A:
(A).
iron