Is this an insect or an animal? A snail is an animal just like you and me. Thats right, you too are an animal. No, you don't look like a snail. You do have some things in common. Animals can be divided into many groups. These groups are decided based on their characteristics. All animals have some basic features in common. That does not mean they are the same. They also have many differences. For example, snails are mollusks and not insects. Mollusks have a unique set of features. Notice the large foot that allows it to move. Yes, it only has one foot. Did you notice the long antennas on its head? This is where the snail's eyes are. They are on the end of the antenna. They are not on its head like most animals. The foot and eyes are unique features. Scientists use these features to place animals into groups.

Question: "What common feature do mollusks and snails have?"

OPTIONS:
- no
- yes

Answer: "Tiny suction feet"

Response: no

Bin Laden and his aides did not need a very large sum to finance their planned attack on America. The 9/11 plotters eventually spent somewhere between $400,000 and $500,000 to plan and conduct their attack. Consistent with the importance of the project, al Qaeda funded the plotters. KSM provided his operatives with nearly all the money they needed to travel to the United States, train, and live. The plotters' tradecraft was not especially sophisticated, but it was good enough. They moved, stored, and spent their money in ordinary ways, easily defeating the detection mechanisms in place at the time. The origin of the funds remains unknown, although we have a general idea of how al Qaeda financed itself during the period leading up to 9/11. General Financing As we explained in chapter 2, Bin Laden did not fund al Qaeda through a personal fortune and a network of businesses in Sudan. Instead, al Qaeda relied primarily on a fund-raising network developed over time. The CIA now estimates that it cost al Qaeda about $30 million per year to sustain its activities before 9/11 and that this money was raised almost entirely through donations. For many years, the United States thought Bin Laden financed al Qaeda's expenses through a vast personal inheritance. Bin Laden purportedly inherited approximately $300 million when his father died, and was rumored to have had access to these funds to wage jihad while in Sudan and Afghanistan and to secure his leadership position in al Qaeda. In early 2000, the U.S. government discovered a different reality: roughly from 1970 through 1994, Bin Laden received about $1 million per year-a significant sum, to be sure, but not a $300 million fortune that could be used to fund jihad. Then, as part of a Saudi government crackdown early in the 1990s, the Bin Laden family was forced to find a buyer for Usama's share of the family company in 1994. The Saudi government subsequently froze the proceeds of the sale. This action had the effect of divesting Bin Laden of what otherwise might indeed have been a large fortune. Nor were Bin Laden's assets in Sudan a source of money for al Qaeda. When Bin Laden lived in Sudan from 1991 to 1996, he owned a number of businesses and other assets.

Question: "How much money did al Qaeda use to fund the 9/11 attacks?"

Response: "$30 million"
OPTIONS:
- no
- yes

A: no

Problem: Porky is looking all over the big city for a hotel room , but due to a convention there are no vacancies . Porky takes the only available vacancy at one hotel , but will have to share with Daffy Duck , who is a very loud , obnoxious and annoying sort . Daffy introduces his invisible kangaroo friend '' Hymie '' , but Porky wo n't believe that . Daffy spends the rest of the night annoying Porky : pestering him with questions , shaking the bed , spilling water from a glass , hogging the blanket and finally literally sending the both of them flying off the bed when Daffy kicks , and startles , Porky with his literally frozen feet . Fed up with his antics , Porky stuffs Daffy in a pillow case and drops him out of the window . As Porky goes back to bed , Daffy returns bandaged , but shakes them off and prepares to get revenge . Daffy tricks the half-asleep pig into stepping out of a window thinking he 's boarding a train . Daffy hides the window saying it 's '' too gruesome '' to watch . Suddenly he hears train noises , and behind the shade , sees the still-drowsy Porky pulling away on an actual train and waving at Daffy . Daffy finds this silly . Then he bounces all around the room , '' Hoo-Hoo ! '' - ing wildly .

Question: "What is too gruesome to watch"

Answer: "The pig stepping out of the window"

OPTIONS:
- no
- yes
Answer: yes

If you build a campfire, you start with a large stack of sticks and logs. As the fire burns, the stack slowly shrinks. By the end of the evening, all that is left is a small pile of ashes. What happened to the matter that you started with? Was it destroyed by the flames? It may seem that way. What do you think happened? The truth is that the same amount of matter still exists. The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases. The gases floated off into the air, leaving behind just the ashes. Although matter was changed, it was not created or destroyed. Because the same amount of matter still exists, we can say that matter is conserved. You may wonder how it can be conserved if something is now missing? Assume you had measured the mass of the wood before you burned it. Assume you had also trapped the gases released by the burning wood and measured their mass and the mass of the ashes. What would you find? The ashes and gases combined have the same mass as the wood you started with. This example illustrates the law of conservation of mass.

Question: "What happened to the wood?"

OPTIONS:
- no
- yes

Answer: "The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases, which floated off into the air, leaving behind just the ashes"

Response:
yes