The digestive system is the body system that digests food. It digest food in two ways, mechanically and chemically. Both help in the process of turning food into nutrients. The digestive system also eliminates solid food waste. The major organs of the digestive system include the mouth, esophagus, stomach, and small and large in- testines. These organs all work together to help you gain energy from the food you eat. Digestion starts in the mouth. When food is swallowed, it travels through the esophagus to the stomach. In the stomach, digestion continues and a small amount of absorption of nutrients takes place. Most chemical digestion and nearly all absorption of nutrients take place in the small intestine. This organ consists of three parts: duodenum, jejunum, and ileum. The large intestine is the last stop in the digestive system. This is where water is absorbed. The food not digested is released as waste.
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Answer: Why is the digestive system important?

We need natural resources for just about everything we do. We need them for food and clothing, for building materials and energy. We even need them to have fun. Table 2.1 gives examples of how we use natural resources. Can you think of other ways we use natural resources? Use Vehicles Resources Rubber for tires from rubber trees Steel frames and other metal parts from minerals such as iron Example iron ore Electronics Plastic cases from petroleum prod- ucts Glass screens from minerals such as lead lead ore Use Homes Resources Nails from minerals such as iron Timber from trees Example spruce timber Jewelry Gemstones such as diamonds Minerals such as silver silver ore Food Sunlight, water, and soil Minerals such as phosphorus corn seeds in soil Clothing Wool from sheep Cotton from cotton plants cotton plants Recreation Water for boating and swimming Forests for hiking and camping pine forest Some natural resources are renewable. Others are not. It depends, in part, on how we use them.
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Answer: What are some natural resource sources we can use as building materials?

As where to guard the walls, full many a foss Begirds some stately castle, sure defence Affording to the space within, so here Were model'd these; and as like fortresses E'en from their threshold to the brink without, Are flank'd with bridges; from the rock's low base Thus flinty paths advanc'd, that 'cross the moles And dikes, struck onward far as to the gulf, That in one bound collected cuts them off. Such was the place, wherein we found ourselves From Geryon's back dislodg'd. The bard to left Held on his way, and I behind him mov'd. On our right hand new misery I saw, New pains, new executioners of wrath, That swarming peopled the first chasm. Below Were naked sinners. Hitherward they came, Meeting our faces from the middle point, With us beyond but with a larger stride. E'en thus the Romans, when the year returns Of Jubilee, with better speed to rid The thronging multitudes, their means devise For such as pass the bridge; that on one side All front toward the castle, and approach Saint Peter's fane, on th' other towards the mount.
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Answer: Where was the place they found themselves after being dislodged from Geryon's back?

Static electricity is like a teeter-totter. What happens if a teeter-totter is balanced? Correct! It does not move. What about when its not balanced? Yes, it will now begin to move. Charges move when they are not balanced. Charges can build up by friction. Maybe you rub your feet on a wool mat or carpet. Rubber soled shoes readily gain charges. The wool carpet easily gives up charges. The two items become unbalanced. One item has a positive charge. The other has a negative charge. The difference in charge is called static electricity. Just like the teeter-totter, something is going to move. Positive charges build up on the mat. Negative charges build up on you.
What question would one ask from this paragraph?
Answer:
When static electricity is not balanced, what happens to the charges?