2020年8月22日 ~ Book6 Unit 30 [Stage12]
＜今日の進捗＞
Book6 - 119(In which scientific fields did (b) Albert Einstein acquire very advanced knowledge?)
＜オリジナル回答＞
What can cause water contamination in the natural environment?
Book6 - 119(In which scientific fields did (b) Albert Einstein acquire very advanced knowledge?)
＜オリジナル回答＞
What can cause water contamination in the natural environment?
A volcano eruption can cause water contamination in the natural environment.
タグ：DME
