Read the excerpt from "Everest Then and Now." The increase in popularity means that more people are climbing Everest than ever. It's true that the economy of Nepal benefits from the hundreds of climbers each year. The government requires climbers to purchase a climbing permit. Climbers who hire Nepalese guides are also helping the local economy. However, more climbers on the mountain cause a number of problems. Large numbers of climbers on the mountain at once can be unsafe, especially when teams get close to the top of the mountain. This was not a concern in the early days of Everest explorers. Now, hiking companies encourage climbing teams to take turns when they get close to the peak. Climbers put in too much effort to get caught in a traffic jam near the summit.

What other information would help explain why traffic jams at the top of the mountain should be avoided?

Information about being respectful to other climbers on the mountain and how people should treat one another
Information about how traffic jams put dangerous chemicals into the air that destroy the air quality on the summit
Information about the dangers that can occur when too many people gather on the summit at one time
Information about the number of climbers who make it to each camp on the mountain, including the base and the summit

answer is: d.because he was such a marginal player but was on several super bowl-winning teams, it's possible that harper let success go to his head.

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laughter improves people's emotional and well-being.   kavita khajuria is a psychiatrist and he has defined laughter as " physical expression of humour and joy that has numorous protective qualities." when you feel under stress or sad because you have argued with a person you love, you need to laugh to feel strong enough to face the problems.

when you have an exam , you probably feel under stress. laughing will you release this tension. humour decreases the hormones that cause stress. k. khajuria   says that the brain releases some chemical components when we laugh. these chemical components are called neurotrophic factors and they are very important. they support the neurons in the brain and encourage the growth of new neurons. as a conclusion, you should laugh a lot before giving your exam. laughing will you with your exam and with your brain.

if you are having difficult times with friends or family members, laughing will also you face these problems. alannagh kelly is an assistant psychologist. she thinks that laughter can   make anger and anxiety vanish in the air. laughter can set a new and exciting atmosphere among people and it can make the bonds bewteen people stronger. so, if you are having a difficult time with someone you love, invite him / her to watch a comedy. you will probably make peace.

laugher will certainly protect you against stress and emotional pain. watching a comedy   may be a solution to stress or damaged bonds. " this remedy is fun , free, and best of all, no instructions needed."   alannagh kelly has said in her blog.