Read the following passage and choose the best answer for each blank.
Attractive landscape sites, such as sandy beaches, lakes, riversides, and mountain tops and slopes, are often affected by mass tourism. Physical (26) _______ are caused not only by clearing and construction of tourism-related land, but by continuing tourist activities and (27) _______changes in local economies and ecologies.
The development of tourism (28) _______such as accommodation, water supplies, can (29) _______ sand mining, beach and sand dune erosion, soil erosion and extensive paving. In addition, road and airport construction can lead to land degradation and loss of wildlife habitats and deterioration of scenery.
In Yosemite National Park in the United States, for instance, the number of roads and facilities (30) _______ to keep pace with the growing visitor numbers and to supply facilities, infrastructure and parking lots for all these tourists. These actions have caused (31) _______loss in the park and are (32) _______by various forms of pollution including air pollution from automobile emissions. The authorities have reported, "Smog was (33)_______that Yosemite Valley could not be seen from airplanes". This occasional smog is harmful to all species and vegetation inside the park.
Construction of ski resort accommodation and facilities frequently (34) _______clearing forested land. Coastal wetlands are often drained and filled due to lack of more suitable sites for construction of tourism facilities and infrastructure. These activities can cause severe disturbance and erosion of the local (35) _______, even destruction in the long term.
and are (32) _______by various forms of pollution including air pollution from automobile emissions.
A. happened
B. accompanied
C. gone
D. appeared
happened (v): xảy ra
accompanied (v): cùng với
gone (v): đi
appeared (v): xuất hiện
=> and are accompanied by various forms of pollution including air pollution from automobile emissions.
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Đáp án cần chọn là: B
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Julia said that she ____ there at noon.
All fossil fuels are ____ resources that cannot be replaced after use
Oil, coal and natural gas are ____ fuels made from decayed material.
We should develop such ____ sources of energy as solar energy and nuclear energy.
Increased consumption will lead to faster ____ of our natural resources.
Many organizations have been set up and funds have been raised.
Many national parks have been established to protect ____animals.
Dinosaurs became ____ millions of years ago.
Venus approaches the Earth more closely than any other planet is.
Trees not only bring nature to urban areas, but they also help clean the air by absorbing pollutants, ______ oxygen, ______ water, and grow food.
Solar energy, air and water are _____ resources because there is unlimited supply.
Nancy isn’t used to walking so far.
Coal and oil are non-renewable ____ sources.
Fewer people came to the meeting than we had expected.
Laura said that when she ____ to school she had seen an accident.