If you are indoors, stay away from plumbing pipes (bath tub, shower). Lightning has the ability to strike a house or near a house and impart an electrical charge to the metal pipes used for plumbing. This threat is not as great as it used to be, because PVC (polyvinyl chloride) is ...
A fire requires fuel to burn, air to supply oxygen, and a heat source to bring the fuel up to ignition temperature. Heat, oxygen and fuel form the fire triangle. Firefighters often talk about the fire triangle when they are trying to put out a blaze. The idea is that if they...
In the past two decades, the number of Americans at risk of experiencing a wildfire has doubled. Learn what you need to do if one is near you.
完形填空 At first men did not know how to make a fire. Sometimes lightning (闪电) 1 a forest and started a fire. The people took some of the 2 to make a fire near their homes. A fire was very important for 3 reasons. It kept them warm. It frightened(吓咆) 4 . They did not ...
Learn More: Why 'Poop' and 'Wiggle' Are Funny Words, According to Science 4. True or false: The Mendocino Complex Fire of 2018 consisted of two major blazes, the Ranch Fire and the River Fire. True. The Mendocino Complex Fire consisted of two major blazes — the Ranch Fire and the Ri...
These breakers electronically monitor the home's power grid for arc faults that older styles of breaker can miss but can nonetheless lead to extreme heat in wiring and fire hazards in some cases. AFCIs are being installed in conjunction with typical central breakers in order to provide a wide...
根据句子Sometimes lightning hit a forest and started a fire.可直接得到答案。 (2).A 属于句意辨别题。It frightened wild animals.意为“火吓跑了野兽”,同选项A。 (3).A 古代人不会生火,所以当他们有了火后,尽量不使它灭掉。 (4).D 从句子It kept them warm...!可知答案。 (5).B 古人生火的...
“we’re running 400 to 500 fires a year. in the heat of summer, five or six a day—and most you’ll never see,” says calfire chief brian estes. photograph: marcus yam/los angeles times save save all products featured on wired are independently selected by our editors. however, we ...
3.Get A Firekable This cool gadget will let you light a fire wherever you go. Don’t leave your house unprepared, and wear one of these whenever you venture outdoors. For a limited time, Firekables are FREE with shipping! Click here to get yours now. ...
1— caused the fire? —Lightning hit the house.A.WhyB.WhereC.WhatD.How 2()4.caused the fire?Lightning hit the house. A.WhyB.WhereC.WhatD.How 3)4.caused the fire?Lightning hit the house. A.WhyB. WhereC.WhatD.How 4— caused the fire? —Lightning hit the house.A.WhyB...