問題詳情
四、閱讀測驗（36~50 題，請選出最適當的選項）Passage 1If we want to live longer, we can no longer afford to inhale air contaminated with particulate matter. Particulatematter—also known as particulates—is microscopic solid or liquid matter floating in the Earth’s atmosphere. Sources ofparticulate matter can be natural or man-made. Particulates which occur naturally may originate from volcanoes, dust storms, orforest fires. Human activities, such as the burning of fossil fuels in vehicles, coal combustion, and various industrial processesalso generate significant amounts of particulates.Fine particles, with a diameter of 2.5 micrometers or less, are the most lethal form of air pollution because they are able topenetrate deep into the lungs and blood streams unfiltered, which in turn may cause permanent DNA mutations, heart attacks, andpremature death. In addition, particulate matter exposure is also linked to an increased risk of stroke by its narrowing effects onthe arteries.Particulate matter can clog minute pores of plant leaves and interfere with photosynthesis functions. It has been found thathigh particulate matter concentrations in the atmosphere can lead to stunted growth or mortality in some plant species.
【題組】36. According to the passage, which of the following activities is unlikely to generate particulates?
(A) burning coal
(B) meditation
(C) driving a truck that runs on diesel
(D) emission from factories
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)