根据第四段第一句“In the 1970s,the American environmental movement forced the passage of the Clean Water Act and the Safe Drinking Water Act,”可知,在七十年代,美国的环境运动迫使了清洁水法案和安全饮用水法案的通过,由此可推出发生在Cuyahoga河大火的一个积极方面是促使清洁水法案的出台。故选D。24....
the protection of wild plants C. soil and water pollution D. a decrease in greenhouse gases 相关知识点: 试题来源: 解析 C。解析:集约农业大量使用农药,这些农药可能流入土壤和水源,从而导致土壤和水污染。“intensive farming”是集约农业,“pesticide”是农药,“biodiversity”是生物多样性。反馈 收藏 ...
答案 答案见上相关推荐 1(2)Commercial cottonfarming农业)uses a large amount of water, and the use of pesticides is widespreadacross the globe, especially in cotton farming.反馈 收藏
aquaculture, nutriculture, soilless culture, or tank farming See all related content hydroponics, thecultivationof plants in nutrient-enriched water, with or without the mechanical support of an inert medium such as sand,gravel, orperlite.
by the people of Ur and others in the Middle East (9). In fact, re searchers have reconstructed water har vesting systems used for runoff farming in Israel's Negev Desert 4,000 years ago (4). Gary W. Frasier is a research hydraulic engineer at the Southwest Rangeland Watershed Research ...
The optimal size of farm ponds in NE Thailand with respect to farming style and multiple uses of water and under various biophysical and socio-economicWater is a limiting factor on farms in NE Thailand because of weather and soils. Variable rainfall leads to high risks in cultivation. Catching...
aPlease refrain from using the equipment's as any use of uncalibrated equipment may render the products tested as defective. Thank You. 叠句从使用设备的作为对未校正的设备的所有用途也许请使产品被测试如瑕疵。 谢谢。[translate] awe saw the sign - briefly 我们看了标志-简要地[translate] ...
Fires have been grouped in three classes. Fires in wood, paper, cloth and the like are called Class A fires. These materials usually help keep the fire on. Such fires can be stopped most readily by cooling with water.1. If a fire breaks out on a bus, which of the follow should be...
Most wheat used forfoodrequires processing. The grain is cleaned and then conditioned by the addition of water so that the kernel breaks up properly. In milling, the grain is cracked and then passed through a series of rollers. As the smaller particles aresiftedout, the coarser particles pass...
Root vegetable, in cuisine and nutrition, a part of a plant grown underground and eaten as food. Root vegetables are a diverse group of foods, including culinary staples such as potatoes, onions, and carrots. Because “root vegetable” is a culinary cate