differ from the top of the mountain. In comparison to\rthe mountain base, the top portion is colder and there is less oxygen and less protection from the\rsun’s rays.\rIt is estimated that half of the world population depends on mountains for water. In fact, the\rmajor rivers of the world are fed by mountains. Many mountains have glacial lakes that are\rformed due to melting of the glaciers.\r34. Internet Relationship 网络关系\rInternet relationships are ones that are made through online communication with a\rprospective friend or date. Nowadays, many people are turning towards makings such\rrelationships as they think these are more reliable than ones that are created by meeting in person.\rPeople have their own individual views regarding such relationships. Internet relationships can be\r10
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