根据后文“In America for example,every citizen produces about 28 tons of carbon dioxide and other dangerous gases a year;in Great Britain the amount is about 10 tons.”(例如,在美国,每个公民每年产生约28吨二氧化碳和其他危险气体;在英国,这个数字约为10吨。)可知,碳足迹通常以每年的二氧化碳吨数来...
Why is Carbon Monoxide Dangerous? When carbon monoxide is inhaled, it passes from the lungs into the hemoglobin moleculesof red blood cells. Carbon monoxide binds to hemoglobin at the same site as and preferentially to oxygen, forming carboxyhemoglobin. Carboxyhemoglobin interferes with the oxygen tr...
_ 1 C __You can measure your carbon footprint by using a calculator that you can find on various websites. _2 B In Americ a for example, every citizen produces about 28 tons of carbon dioxide and other dangerous gases a year; in Great Britain the amount is about 10 tons.3 E The ...
Are Carbon Emissions Dangerous? Source: iStock Carbon emissions are dangerous in that they threaten the livelihood of our planet, animals, humans, and ultimately, life as we know it. The amount of carbon emissions trapped in our atmosphere causes global warming, which causes climate change, sympt...
They also made it less dangerous by replacing supercritical alcohol with supercritical carbon dioxide in the drying process. These developments reduced the time spent drying the aerogels and reduced the hazardous and flammable nature of their production. Such advances made aerogel a bit more ...
What can I do for our environment?我可以为我们的环境做些什么呢?Everyone can do something for our environment.每个人都可以为我们的环境做些事情。As a student, we should establish the sense of thrift in the daily life of school.作为一名学生，我们应该在学校的日常生活树立节俭意识。I ...
Carbon dioxide levels will rise and could produce dangerous, toxic effects. If the batteries run out, then the heating systems will fail and the temperature of the submarine will fall. Rescue attempts from the surface must occur quickly, usually within 48 hours of the accident. Attempts will...
It can even be dangerous; some people try to check messages while driving. So what can we do to overcome FOMO? Firstly, it is important to remember that what people prefer to pick and choose to post on social media doesn’t necessarily show their life overall, so we only know a ...
It does this by damaging the cilia, tiny hairlike structures whose job it is to keep the airways clean. 它是通过破坏纤毛来实现的,微小的毛发状结构,其作用是保持气道清洁。 It then fills the alveoli, tiny air sacs that enable the exchange of oxygen and carbon dioxide between the lungs and bl...
The carbon dioxide then leaves the alveolus when you exhale and the oxygen-enriched blood returns to the heart. Thus, the purpose of breathing is to keep the oxygen concentration high and the carbon dioxide concentration low in the alveoli so this gas exchange can occur! Anatomy of the Lung ...