Forest fires can be caused by .A.Careless smokers.B. Lightning.C.Thunder clouds.D.A and B 相关知识点: 试题来源: 解析 D A选项(Careless smokers):正确。吸烟者未熄灭的烟头可能引燃易燃物,导致森林火灾。 B选项(Lightning):正确。闪电击中树木或地面时可能产生火花,引发火灾。 C选项(Thunder clouds):...
根据“European researchers have estimated(估算) between 6, 000 and 24,000 people are killed by lightning worldwide each year”及“The strikes can also cause power cuts, destroy houses and start forest fires”可知,能导致人的死亡,停电、毁坏房屋和引发森林火灾,故选B。【小题2】词义猜测题。根据“...
Sometimes, fires occur naturally, ignited by heat from the sun or a lightning strike. However, the majority of wildfires are the result of human carelessness. Common causes for wildfires include: Arson Campfires Discarding lit cigarettes Improperly burning debris Playing with matches or fireworks ...
Human and lightning ignited fires altered and steered the trajectories of ecosystem develop- ment in most parts of the world. The primary source of forest and grass fire ignitions Fire Ecology Vol. 5, No. 1, 2009 doi: 10.4996/fireecology.0501129 Neary: Post-Wildfire Desertification: Can ...
A wildfire is an uncontrolled and unpredictable fire in a forest, grassland, or cropland that destroys trees, plants, and other organisms residing in the forest. Human activities, lightning, and so on can start a wildfire.Answer and Explanation: ...
It was one of the largest fires in California's history.Natural causes like lightning(闪电)and the hot sun can cause wildfires, but four out of five wildfires are caused by humans. Dry weather and high winds help wildfires spread(蔓延), and they can move very quickly, up to 23 km an ...
Certain animals do better in the burnt-out place that fires create. And by burning trees and their leaves, wildfires allow sunlight to reach the forest floor, so light can reach seedlings(幼苗) and help them grow into new plants. Wildfires are dangerous and can cause destruction(破坏). But...
Surge in extreme forest fires fuels global emissions (nature.com) Traces of sunscreen agents found in the snow at the North Pole (phys.org) Flowers ‘giving up’ on scarce insects and evolving to self-pollinate, say scientists | Wild flowers | The Guardian (archive.org)...
Alaska and northern Canada. The scientists looked for fires that began close to fires from the year before. They also focused on blazes starting before the middle of summer. Random lightning or human actions spark most fires in the area, Scholten says. But those fires happen later in the ...
then felt the lightning-streak of pain as the cane etched a second blazing welt across my seat. I squirmed as I foughtthe burn in my flesh, and blinked as I became aware of tears forming in my eyes. He wielded the canea third time and it felt as if it landed right on top of...