Answer the following question given this paragraph: Over 90% of the energy we use comes originally from the sun. Every day, the sun provides the earth with almost 10,000 times the amount of energy necessary to meet all of the world's energy needs for that day. Our challenge is to find ways to convert and store incoming solar energy so that it can be used in reactions or chemical processes that are both convenient and nonpolluting. Plants and many bacteria capture solar energy through photosynthesis. We release the energy stored in plants when we burn wood or plant products such as ethanol. We also use this energy to fuel our bodies by eating food that comes directly from plants or from animals that got their energy by eating plants. Burning coal and petroleum also releases stored solar energy: These fuels are fossilized plant and animal matter. This chapter will introduce the basic ideas of an important area of science concerned with the amount of heat absorbed or released during chemical and physical changesan area called thermochemistry. The concepts introduced in this chapter are widely used in almost all scientific and technical fields. Food scientists use them to determine the energy content of foods. Biologists study the energetics of living organisms, such as the metabolic combustion of sugar into carbon dioxide and water. The oil, gas, and transportation industries, renewable energy providers, and many others endeavor to find better methods to produce energy for our commercial and personal needs. Engineers strive to improve energy efficiency, find better ways to heat and cool our homes, refrigerate our food and drinks, and meet the energy and cooling needs of computers and electronics, among other applications. Understanding thermochemical. Q: Over 90% of the energy we use comes originally from what? A:
OPTIONS:
- earth
- water
- horizon
- sun

Answer: sun

Question: Answer the following question given this paragraph: Figure 25.5 Light is diffused when it reflects from a rough surface. Here many parallel rays are incident, but they are reflected at many different angles since the surface is rough. Q: What happens to light when it reflects from a rough surface? A:
OPTIONS:
- reflects
- becomes isolated
- becomes concentrated
- gets diffused
Answer: gets diffused

input with options: Answer the following question given this paragraph: Q: While enzymatic hydrolysis proceeds, peristalsis moves the mixture of chyme and digestive juices along what? A:
OPTIONS:
- esophagus
- stomach
- large intestine
- small intestine
output: small intestine

Q: Answer the following question given this paragraph: Q: What do you call something that controls the uptake of water or another substance in the environment, in order to maintain constant internal conditions? A:

OPTIONS:
- sporozoans
- protozoans
- osmoconformers
- osmoregulators

A: osmoregulators

input: OPTIONS:
- pulmonary
- nervous
- peripheral
- cardiovascular Now, answer this question: Answer the following question given this paragraph: The lymphatic system helps return fluid that leaks from the blood vessels back to the cardiovascular system. Q: The lymphatic system helps return fluid that leaks from the blood vessels back to what system? A:
A:
output: cardiovascular

Question: Answer the following question given this paragraph: As you can see in Figure above , a transformer consists of two wire coils wrapped around an iron core. When alternating primary current passes through coil P, it magnetizes the iron core. Because the current is alternating, the magnetic field of the iron core keeps reversing. This changing magnetic field induces alternating current in coil S, which is part of another circuit. In Figure above , coil P and coil S have the same number of turns of wire. In this case, the voltages of the primary and secondary currents are the same. However, when the two coils have different numbers of turns, the voltage of the secondary current is different than the voltage of the primary current. Both cases are illustrated in Figure below . Q: When alternating primary current passes through coil p, it does what to the iron core? A:
OPTIONS:
- electrilizes it
- creates it
- heats it
- magnetizes it
Answer:
magnetizes it