Question:
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.  After reading the above, is "Small pile of ashes" the correct answer to the question "What is left when the stack shrinks?"? OPTIONS:
- no
- yes

Answer:
yes
Input: 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. 
"Is any matter created when you burn wood in a campfire?" is "Maybe"?

OPTIONS:
- no
- yes
Output: no
Input: Fossils can be used to match up rock layers. As organisms change over time, they look different. Older fossils will look different than younger fossils. Some organisms only survived for a short time before going extinct. Knowing what organisms looked like at certain times also helps date rock layers. Some fossils are better than others for this use. The fossils that are very distinct at certain times of Earths history are called index fossils. Index fossils are commonly used to match rock layers. You can see how this works in Figure 2.30. If two rock layers have the same index fossils, then they're probably about the same age. 

Does the response "Cast fossils" correctly answer the question "What kind of fossils are used to date rock layers?"?

OPTIONS:
- no
- yes
***
Output: no
When land is cleared, habitats are lost. It may be cleared for agriculture. It may also be used for building new homes or businesses. Within the past 100 years, the amount of land used for agriculture has almost doubled. Land used for grazing cattle has more than doubled. Many wetlands have also been lost to agriculture. The U.S. has lost almost all the natural tall-grass prairies. Thee areas of tall thick grass have virtually disappeared. These areas of land had thick fertile soil. Their grasses had very deep root systems. These deep and thick roots reduced the amount of soil erosion. They also were home to many plants and animals. Prairies were wonderful places. They were home to colorful flowers, prairie dogs, and herds of bison. 

Question: "What are the advantages of tall grass prairies?"

OPTIONS:
- no
- yes

Answer: "A place for animals to graze"

Response: no
Question:
Tom's relaxation at the beach is interrupted by Jerry who inadvertently walks all over a sunbathing Tom going fishing . Jerry falls into Tom's mouth and while escaping , nearly causes Tom to swallow his beach towel . Jerry goes out to the pier and casts his favorite bait : cheese . Tom pulls on the line and makes Jerry reel him in . Jerry lets go of the line and Tom struggles to stay afloat , losing the string . Tom barely catches the pier , but Jerry swings the pole at him . After a few misses , Jerry whistles and then lands a direct hit . He runs to the end of the pier and pulls off the end board . Tom ca n't brake , and walks the plank until Jerry pulls it out , causing Tom to fall into the water and without emerging . A drowning Tom wakes up on the sea bed , where he finds himself still alive . He starts imitating the majestic sea creatures until he spots Jerry . The cat grabs him , but Jerry pulls away revealing that he has become a mer-mouse . Jerry swims in circles until Tom's head has done a 360 , and is then grabbed again . Jerry slaps Tom face with his tail , then spins his ears in to the shape of a wrench . The cat gives chase through shipwreck windows until Tom hangs back to swallow the mouse . Jerry breaks out through Tom's left eardrum . Jerry hides and disguises himself as a seahorse to join a father seahorse leading his babies , fooling the cat for only a while . Jerry then gets lassoed and captured , but Tom gets tricked into holding a fishing line and is caught .  After reading the above, is "No, Tom catches the line, but Jerry does not reel him in" the correct answer to the question "Does Jerry catch Tom like a fish on a fishing line?"? OPTIONS:
- no
- yes

Answer:

yes