air water weather
Quiz by teresa
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7 questions
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- Q1why do people who climb high mountains carry oxygen cylindersthe air gets thinner as we go higher and it becomes difficult to breathbecause they feel very hotthey will be thirstythey are having breathing problems30s
- Q2name two methods of removing insoluble impurities from waterwash itfilteration and decantation30s
- Q3which of these gases is the most important for providing food to all living thingscarbon dioxidenitrogenwater vapouroxygen10s
- Q4more than 3 quaters of air is _______oxygencarbon dioxidenitrogen10s
- Q5the gas needed by plants to make food is ___________oxygenmineralsnitrogencarbon dioxide10s
- Q6when we breath we take in ______smellairoxygen10s
- Q7what protects earth in various ways?atmospherespaceoxygen10s