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暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片总数: 4 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
卡片预览 (4 张)
#1
正面 (问题)
How is nitrogen oxide produced in car engines?
背面 (解答)
• high temperature in car engine • nitrogen reacts with oxygen in the air
#2
正面 (问题)
What is sustainable development?
背面 (解答)
Improving infrastructure or society without compromising needs for our future generation
#3
正面 (问题)
How do greenhouse gases cause global warming? (4)
背面 (解答)
• greenhouse gases allow short chain hydrocarbons to enter atmosphere • which are absorbed by the earth and remitted as longer wavelength radiation • which is absorbed by greenhouse gases • increasing the temperature and thus leading to global warming
#4
正面 (问题)
What needs to be removed from agricultural waste water?
背面 (解答)
• microbes • bacteria • pathogens