Mountain regions face a number of dangers
1、negative 2、report 3、warming 4、pressures Mountainous Barely make way for expect 98 percent of the mountain areas to experience severe climate change by 2055 The UN is anxious to raise awareness of the problems facing mountain areas Thousands of villages in Europe are deserted most of the year signs Santa's home town in danger warmer temperatures warmest snow attracts trouble normal best season one-time white Unit 2 test CCBCD Correct answer Chemicals Atmosphere Particles Trapped Lasts human-based Progressed 8、Even in Ancient Rome people complained about smoke put into the atmosphere 9、Air pollution can have serious consequences for the health of human beings 10、Cities with large numbers of automobiles or those that use great quantities of co