TASK DEFINITION: In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".
PROBLEM: 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. <sep>In the last 100 years, how much has the agricultural clearing grown and how is it used?<sep>It has tripled, and used for cattle

SOLUTION: No

PROBLEM: What a time of it Dawson's Landing was having! All its life it had been asleep, but now it hardly got a chance for a nod, so swiftly did big events and crashing surprises come along in one another's wake: Friday morning, first glimpse of Real Nobility, also grand reception at Aunt Patsy Cooper's, also great robber raid; Friday evening, dramatic kicking of the heir of the chief citizen in presence of four hundred people; Saturday morning, emergence as practicing lawyer of the long-submerged Pudd'nhead Wilson; Saturday night, duel between chief citizen and titled stranger. The people took more pride in the duel than in all the other events put together, perhaps. It was a glory to their town to have such a thing happen there. In their eyes the principals had reached the summit of human honor. Everybody paid homage to their names; their praises were in all mouths. Even the duelists' subordinates came in for a handsome share of the public approbation: wherefore Pudd'nhead Wilson was suddenly become a man of consequence. When asked to run for the mayoralty Saturday night, he was risking defeat, but Sunday morning found him a made man and his success assured. <sep>On what day did the event happen that the most people took pride it?<sep>Friday evening

SOLUTION: No

PROBLEM: Fact: I wasn't dead. After I realized this, I left my quarters. The lightscreen provided had informed me when and where official meals were taking place, but I hadn't bothered to acknowledge the invitations. It hadn't seemed relevant, somehow, given that I was still reeling over the explosion, the deaths of my crewmates, and the rescue. I've heard there are a number of stages of grief and shock; I guess I was working my way through them. Food was delivered to my quarters. Initially, I couldn't figure out whyI hadn't requested any be sent. Then I realized, someone must have noticed I hadn't left, and was nice enough to send food my way. The accompanying bottle of wine was a nice touch. I must have consumed it, too, because later on, the plates and the bottle were both empty. I spent a lot of time lying on my back on the bed, staring up at the little etched swirls in the ceiling, or slumped in the old-fashioned armchair, staring out the windows at the stars. I did a lot of staring and not moving. Man, was it good to be done with that stage. It was time to find out what hell looked like. <sep>Why was he grief and shock, to where the food was delivered?<sep>The death of his crewmates

SOLUTION:
Yes