In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
--------
Question: Article: Discover the beautiful, silent, white world or Antarctica on the holidays of a life-time.Head South to Buenos Aires and then transfer to the world's most southern city, Ushuaia.From there, it's about 1,000 kilometers on a special icebreaker ship to the freezing temperature of Antarctica. Getting off the ship and taking your first step onto the ice, you will imagine what it is like to be an explorer.Meet penguins sitting on their eggs, or see an Antarctic seal that lives all the year round on the ice.But do not get closer than five meters to any animal, in case you frighten it or make it angry. The friendly crew of the ship will look after you as you explore the ice continent. We promise you fantastic meals and a comfortable bed -- you sleep in a four-person cabin -- as well as many special treats.If you don't think it is cold enough, try the ''polar plunge" -- jump into a special hole dug in the ice and dip your head under the water.You can then jump into a hot bath and if you succeed we will give you a certificate. After you wake up for the first time in the Antarctica you will understand why everybody who goes there falls in love with the place.The scenery is different every day because the sea ice is always moving. Our ships travel to Antarctica from November to March -- phone today and book your dream holiday!
Answer: Never make them angry.

Answer: How should you behave when you see animals on Antarctica?

Question: Article: The Boy Made It! One Sunday, Nicholas, a teenager, went skiing at Sugarloaf Mountain in Maine. In the early afternoon, when he was planning to go home, a fierce snowstorm swept into the area. Unable to see far, he accidentally turned off the path. Before he knew it, Nicholas was lost, all alone! He didn't have food, water, a phone, or other supplies. He was getting colder by the minute. Nicholas had no idea where he was. He tried not to panic. He thought about all the survival shows he had watched on TV. It was time to put the tips he had learned to use. He decided to stop skiing. There was a better chance of someone finding him if he stayed put. The first thing he did was to find shelter form the freezing wind and snow. If he didn't, his body temperature would get very low, which could quickly kill him. Using his skis, Nicholas built a snow cave. He gathered a huge mass of snow and dug out a hole in the middle. Then he piled branches on top of himself, like a blanket, to stay as warm as he could. By that evening, Nicholas was really hungry. He ate snow and drank water from a nearby stream so that his body wouldn't lose too much water. Not knowing how much longer he could last, Nicholas did the only thing he could- he huddled in his cave and slept. The next day, Nicholas went out to look for help, but he couldn't find anyone. He followed his tracks and returned to the snow cave, because without shelter, he could die that night. On Tuesday, Nicholas went out to find help. He had walked for about a mile when a volunteer searcher found him. After two days stuck in the snow, Nicholas was saved. Nicholas might not have survived this snowstorm had it not been for TV. He had often watched Grylls' survival show. Man vs. Wild. That's where he learned the tips that saved his life, In each episode of Man vs. Wild, Grylls is abandoned in a wild area and has to find his way out. When Grylls heard about Nicholas' amazing deeds, he was super impressed that Nicholas had made it since he knew better than anyone how hard Nicholas had to work to stay alive.
Answer: He got lost.

Answer: What happened to Nicholas one Sunday afternoon?

Question: Article: Below is a selection from a popular science book. If blood is red, why are veins blue? Actually, veins are not blue at all. They are more of a clear, yellowish colour. Although blood looks red when it's outside the body, when it's sitting in a vein near the surface of the skin, it's more of a dark reddish purple colour. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison. Which works harder, your heart or your brain? This question depends on whether you're busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker. But, in the long run, your brain probably tips it, because even when you're sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it. Do old people shrink as they age? Yes and no. Many people do get shorter as they age. But, when they do, it isn't because they're shrinking all over. They simply lose height as their spine becomes shorter and more curved due to disuse and the effects of gravity . Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again?No, because old people don't really shrink!It is not that they are growing backwards--their legs, arms and backbones getting shorter. When they do get shorter, it's because the spine has shortened a little. Or, more often, become more bent and curved. Why does spinning make you dizzy ? Because your brain gets confused between what you're seeing and what you're feeling. The brain senses that you're spinning using special gravity and motion sensing organs in your inner ear, which work together with your eyes to keep your vision and balance stable. But when you suddenly stop spinning , the system goes out of control, and your brain thinks you're moving while you're not! Where do feelings and emotions come from? Mostly from an ancient part of the brain called the limbic system. All mammals have this brain area--from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other newer bits of the brain, we feel more complex emotions than any other animal on the planet.
Answer: Dark reddish purple.

Answer:
What is the colour of blood in a vein near the surface of the skin?