解析 答案:how iron reacts with air and water.根据句意和所给部分句子可知show us后面是宾语从句,从句用how引导,语序是陈述句语序,短语react with和…反应. 它向我们展示铁是如何与空气、水起反应的.反馈 收藏
In 2022, the U.S. consumed 15.9 billion gallons of bottled water, the equivalent of 120 billion water bottles. Storing Bottled Water If you plan to keep a supply of bottled water at home, you should store it at room temperature or colder, out of direct sunlight and far from any chemic...
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根据所学内容和下列文章的语境,填入合适的词语 Below is a description of a simple scientific experiment.It shows us how iron reacts with air and with water. Aim:To find out if iron rusts in water that has
This means water coming from a well pump can carry lead, manganese, copper, iron, and other large amounts of toxic metals. In order to prevent your drinking water from being contaminated with pollutants, it’s important to raise the pH range to healthy levels. Before breaking down how to ...
To provide a method for supplying iron content, supplying soluble iron content easily ingestible by aquatic plants such as marine alga and seaweed, into water for a long period, widely usable by using materials available in large quantity at a low cost, and applicable to a wide water area su...
Below is a description of a single scientific experiment. It shows us how iron reacts with air and with water.Aim: To find out if iron rusts in dry air; (b) in water that has no air in it in ordinary water.Materials: Some clean iron nails ; test tubes; t
to root level—about 6 inches—in the area that you want to test and remove enough soil to fill the jar to between one-third and one-half full. Next, fill the jar to the shoulder with water, then set the jar aside to let the soil soak up the water. Put the lid on the jar ...
(2022·北京东城·九年级期末)If you’re working to become better or hoping to make a change, you’ll probably hear your family and friends say “go big or go home”. But sometimes big goals can shoot you in the foot. So, is it good to set high expectations? Having high expectations ...
in advance at half price. C) It s difficult to buy the tickets on the spot. D) I t / s b e tt er to buy the t ick et s beforehand. 18. A) He turned suddenly and ran into a tree . B) He was h it by a fa llen box from a truck . C) He dro e too fa st and ...