Q: Read the following article and answer the question. Article: The surprising experiment I am about to describe proves that air is all around you and that it presses down upon you. Air pressure is a powerful force. When you swim underwater, you can feel water pushing on your body. The air all around you does the same. However, your body is so used to it that you do not notice this. The pressure is caused by a layer of air called the atmosphere. This layer surrounds the Earth, extending to about five kilometers above the Earth's surface. The following experiment is an easy one that you can do at home. But make sure that you are supervised , because you will need to use matches. Now for the experiment. What you need * hard-boiled egg without the shell * A bottle with a neck slightly smaller than the egg * A piece of paper * A match Method 1) Check that the egg will sit firmly on the neck of the bottle. 2) Tear the paper into pieces and put them into the bottle. 3) Light the paper by dropping a burning match into the bottle. 4) Quickly sit the egg on the neck of the bottle. Result Astonishingly, the egg will be sucked into the bottle. Your friends will be amazed when you show them the experiment. But be careful when you handle matches. Why it happened? As the paper burns, it needs oxygen and uses up the oxygen (air) in the bottle. The egg acts as a scale in the neck of the bottle, so no more air can get inside. This reduces the air pressure inside the bottle. The air pressure must equalize, so more air from outside must enter the bottle. The outside air presses against the egg, and then the egg is pushed into the bottle! This proves that air is all around and that it is pressing down on us. Question: The experiment is carried out to prove _ .. Answer:

OPTIONS:
- water pushes on your body when you swim underwater
- the earth is surrounded by a layer of air called the atmosphere
- the pressure of air around us has a powerful force
- the air pressure is not equalized around us

A: the pressure of air around us has a powerful force

Q: Read the following article and answer the question. Article: Two young artists named Sue and Joanna shared a studio apartment in the Greenwich Village area of New York, trying to realize their dreams. In November pneumonia killed many people. Unluckily, Joanna fell ill, too. One morning, a doctor examined Joanna and then spoke with Sue in another room. "She has decided that she has no chance. All we can do is give her a strong will to live." Holding back her tears, Sue went to Joanna's room. Joanna lay with her face toward the window, eyes wide open. She was counting something backward. "Twelve," she said, and a little later "eleven" until "five," almost together. Sue looked out of the window. What was there to count? There was a wall covered with an old ivy vine growing half way up it. The cold breath of autumn has stricken the leaves from the vine until it was almost bare. "Five what, dear?" asked Sue. "Leaves. On the ivy vine. When the last one falls I must go, too." "Oh, Don't be silly." Said Sue, "You will get better." "There goes another one. I want to see the last one fall before it gets dark." "Try to sleep." said Sue. "I must call Mr. Behrman up to be my model for my drawing of an old miner. Don't try to move until I come back." Old Behrman was a poor painter who lived in the building. For years he had always been planning to paint a work of art, but had never yet begun it. He earned a little money by serving as a model to artists who could not pay for a professional model. Sue found Behrman in his room. In one area was a blank canvas that had been waiting twenty-five years for the first line of paint. Sue told him about Joanna and how she feared that her friend would float away like a leaf. "What!" Old Behrman was angered at such an idea. "How silly! Just take me to her room." Joanna was sleeping when they went in. A cold rain was falling, mixed with snow. The next morning, Sue awoke after an hour's sleep. She found Joanna staring at the covered window. "Pull up the shade; I want to see." Sue obeyed. "It's the last leaf," said Joanna. "It will fall... Question: Why did Sue call the painting the masterpiece of Old Behrman? Answer:

OPTIONS:
- Because Old Behrman promised that he would paint a work of art.
- Because Sue was so ashamed of her own poor performance in art.
- Because it was so perfect and saved Joann's life in the end.
- Because few painters could compare with Old Behrman in talent.

A: Because it was so perfect and saved Joann's life in the end.

Q: Read the following article and answer the question. Article: Officials in the Midwestern U. S. town of Joplin, Missouri, say the death from Sundays' big tornado reaches 116 and that search efforts continue for possible survivors trapped in rubble . Search and rescue teams are conducting their third sweep through the nearly 10 kilometer - long and one - kilometer wide area of destruction left by the tornado. They are working as quickly as possible while weather conditions remain relatively stable. More storms are forecast for the area. Joplin Fire Chief Mitch Randles said there are areas with large piles of rubble that might hold survivors. "We are still finding individuals. We did rescue seven individuals from underneath rubble yesterday and, of course, we are also finding dead folks as well." Said more folks and that is why we are doing these searches. We want to make every opportunity that we can to find everybody that is in the rubble and that has survived to this point." Randles said the current sweep involves a slower pace that previous searches and that he plans a fourth search, possibly on Wednesday, using specially trained dogs. "We are searching every structure that has been damaged or destroyed in a more in-depth manner, "he said." I have dogs and dog handlers coming from all over the country do help us in that effort." Joplin City Manager Mark Rohr said the Red Cross and other volunteer organizations are helping people who were left homeless by the tornado and that the Federal Emergency Management Agency, or FEMA, is on hand to help. "Joplin is a great city. We have suffered a great loss, "said Rohr." We will recover and we will recover strongly and we have a lot of help and a lot of volunteers to make that easier." The tornado that struck Joplin was classified by the Natioonal Weather Service as an F - 4, with winds of more than 300 kilometers per hour. It lasted only 20 minutes, but it killed more that 100 people, injured more than 400 others, and destroyed or heavily damaged some 2,000 homes, businesses, churches and a hospital. Authorities have... Question: What kind of disaster of this article is talking about? Answer:

OPTIONS:
- tornado
- earthquake
- flood
- drought

A:
tornado