Allan crouched over his desk once more, pen in hand and mind blank. He contemplated a story, an outline he had laboriously constructed some time ago. He had filled his pen and raised it, the nib descending towards the paper, before the sound came: the gentle, persistent tapping of the gnarled, primeval willow touching the window with long, insistent fingers. His eyes awoke with a passionate, determined flame, though the only light came from the glutted moon. Allan filled page after page, the words escaping from his mind onto the paper. Where before they had marched in regiments, practiced in ranks and followed their leaders' commands, the words now escaped in their true forms, unhindered by any stricture. He continued long into the night, until the eldritch orb had sunk into the waiting hands of the willow, raised perpetually skyward. Arthur looked up from the results of a night's frenzied labors and looked Allan in the eye. "What is this?" he queried, indicating the pages he held in his left hand. "I decided that since I wasn't having much success with more traditional stories, I might see what sort of work I produced if I let my imagination go freely," Allan replied, somewhat less self-assured than he had been the previous night. "What in G-d's name could have possessed you to do such a thing," cried Arthur, nearly raising his voice. "After all I said the day before, why have you abandoned centuries of literary progress for some self-indulgent fantasy?" He shook the papers at Allan, raising them like a belt above the head of a disobedient son. "This is nothing but a glorified Grimm's tale, a miscarried child of Stoker, a creation less fit to be published than to be told around an open fire at the hovel of some peasant!" He spoke the last word with such heavy intonation that Allan shrank back before the physical wave of sound emanating from Arthur's throat. "Do you hate the modern system of literature? Do you personally despise the works the Enlightenment or the progress made since Shakespeare?" For a moment, Allan could hardly do more than shake his head. "No, of course not I " "Then why," Arthur barreled on, "do you disregard them all and return to this superstitious babble, this morbid, paganistic drivel?

Question: "Did Allan write his story in a single session?"

OPTIONS:
- no
- yes

Answer: "Yes"

Response: yes

ATLANTA, Georgia (CNN) -- On a plot of soil, nestled against the backdrop of skyscrapers in downtown Atlanta, Georgia, a group of residents are turning a lack of access to fresh produce into a revival of old traditions and self-empowerment. Urban farming is a way for African-Americans to connect with the earth, says Cashawn Myers of HABESHA. HABESHA Gardens is one of many urban gardens sprouting up around the country. Fruits and vegetables are thriving in this community garden located in an economically depressed area of the city known as Mechanicsville. But the garden serves an even greater purpose. The harvest helps feed some of the neediest members of the neighborhood. "It's a reawakening going on. It's almost like it's a renaissance," says Cashawn Myers, director of HABESHA Inc. "There's a Ghanaian proverb that says Sankofa. Sankofa means return to your past so you can move forward. Even if you look at coming over here during our enslavement, we were brought here to cultivate the land because that's something we did on the continent. So really, that's what many of the people are doing now," he said. Myers believes urban farming is a way for many African-Americans to reconnect with their past. iReport.com: Show us your urban farm "They are going through a process of Sankofa and going to what they traditionally did, which is connect to the Earth so they can move forward and grow," he says. But HABESHA Gardens isn't unique. Former pro basketball player Will Allen, who is considered to be one of the nation's leading urban farmers and founder of Growing Power Inc., estimates that there are hundreds of thousands of urban gardens in inner cities across America. Urban farms help feed people, sustain neighorhoods " "It's beyond a movement at this point. Its more like a revolution," says Allen.

Question: "Why does former Professional Basketball player Will Allen describe Urban farming by saying " It's beyond a movement at this point. It's a more of a revolution""

Response: "Because urban farming just started"
OPTIONS:
- no
- yes

A: no

Problem: Sound waves are mechanical waves. They can travel only through matter. They cannot travel through empty space. This was demonstrated in the 1600s by a scientist named Robert Boyle. Boyle placed a ticking clock in a sealed glass jar. The clock could be heard ticking through the air and glass of the jar. Then Boyle pumped the air out of the jar. The clock was still running, but the ticking could not be heard. Thats because the sound couldnt travel without air particles to transfer the sound energy. Is there any other place where sound cannot be heard? Here is a hint: is there any other place that does not have air molecules? Thats right, in space sound cannot be transferred. So can astronauts hear each other? Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules. If they left their space ship and did not use their electronics, they would not be able to hear each other. Next time you watch a science fiction movie, think about this factoid. When spaceships are destroyed by hostile alien beings, there would be no sound heard. Sound waves can travel through many kinds of matter.

Question: "How did Robert Boyle prove the properties of sound waves?"

Answer: "boyle placed a clock in a jar with no air, there was no sound"

OPTIONS:
- no
- yes
Answer: yes

Reducing resource use means just what it says using fewer resources. There are lots of ways to reduce our use of resources. Buy durable goods. Choose items that are well made so they will last longer. Youll buy fewer items in the long run, so youll save money as well as resources. Thats a win-win! Repair rather than replace. Fix your bike rather than buying a new one. Sew on a button instead of buying a new shirt. Youll use fewer resources and save money. Buy only what you need. Dont buy a gallon of milk if you can only drink half of it before it spoils. Instead, buy a half gallon and drink all of it. You wont be wasting resources (or money!) Buy local. For example, buy local produce at a farmers market, like the one in Figure 2.20. A lot of resources are saved by not shipping goods long distances. Products bought at farmers markets use less packaging, too! About a third of what we throw out is packaging.

Question: "How does buying local reduce resource use?"

OPTIONS:
- no
- yes

Answer: "You don't have to travel as far"

Response:
no