首页
登录
职称英语
[audioFiles]2015m7s/audio_ezfj_20155_007[/audioFiles]
[audioFiles]2015m7s/audio_ezfj_20155_007[/audioFiles]
游客
2023-11-04
91
管理
问题
选项
答案
Causes of Forest Fires
Forest fires are one of the greatest natural destroyers of our forests. It has been found that about 90% of forest fires are due to human factors. The most common cause for the forest fires is the carelessness of people. Smokers may start a forest fire by carelessly dropping lighted matches and cigarettes in a forest. Tourists sometimes throw the lighted items in the bushes around or on the ground which cause fire. There are also some natural causes of forest fires. Forest fires can occur due to lightning which burns the trees. Earthquake is also responsible for the forest fires, while other reason for fire is volcanoes and drought. High temperature and low humidity provides favorable conditions to the fire and hence it can start in forests. Since forest fires destroy valuable trees and even kill people, we need to learn the causes and to know how to prevent them.
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3157864.html
相关试题推荐
[audioFiles]2015m6x/audio_ezfm_113_20154[/audioFiles]Hi
[audioFiles]2015m6x/audio_ezfm_039_20154[/audioFiles]
[audioFiles]2015m6x/audio_ezfm_077_20154[/audioFiles]
[audioFiles]2015m6x/audio_ezfm_090_20154[/audioFiles]St
[audioFiles]2015m7s/audio_ezfj_20155_009[/audioFiles]
[audioFiles]2015m7s/audio_ezfj_20155_008[/audioFiles]Ch
[audioFiles]2015m7s/audio_ezfj_20155_006[/audioFiles]
[audioFiles]2015m7s/audio_ezfj_20155_005[/audioFiles]
[audioFiles]2015m7s/audio_ezfj_20155_004[/audioFiles]
[audioFiles]2015m7s/audio_ezfj_20155_003[/audioFiles]
随机试题
如果买卖双方在既定价格水平下均要受到成交量的限制,那么市场就是()。A、有广度的B、狭窄的C、缺乏深度的D、有深度的B广度是指在既定价格水平下
经过四个月的诊断,史密斯太太还是被宣告为彻底失明且无法治愈。(incurably)Attheendofherfourmonthsstayint
You’resittingatarestaurantwaitingforafriend.Twentyminutesafteryo
夜间驾驶机动车超车遇到前车不让路时应怎样处置?()A.连续鸣喇叭提示 B.开
A.10 B.-10 C.-250 D.250
一大面积烧伤患者,近日来常寒战、高热,呈间歇热,四肢厥冷,发绀,尿量明显减少,很
深圳证券交易所的股价指数包括( )。 ①深证成分指数 ②深证综合指数 ③
由于髓减脑消,神机失用而致的以呆傻愚笨为主要临床表现的神志疾病是A.郁病 B.
生殖辅助技术是指在自然生殖过程中某些辅助手段,在临床伦理学中,关于医护人员义务的
按照国际劳工组织的统计标准,凡是在规定年龄内在一定期间内满足()情况的均属于失
最新回复
(
0
)