22. The production of most forms of power produces so-called greenhouse gases that contribute ______ global warming.
举一反三
- Global climate change mainly refers to global warming caused by the increase of ( ). A: Harmful gases B: Noble gases C: greenhouse gases D: Air pollutants
- Global Warming Global warming A mix of ______________ and irregular climate change Cause of global warming ________________: carbon dioxide, water vapor, and methane ________________: using forests as fuel, for building, furniture, etc. The use of __________________ on crops _____________________ Effects of global warming Destruction of important _______________________ systems Loss and endangement of many ___________________________ _______________________________________ Solutions to global warming To reduce gases put into atmosphere Be more _______________, use wind and solar power etc. To in crease greenhouse gases taken out of the atmosphere Planting trees Making changes to the _____________________________
- Global warming is mainly _______ by greenhouse gases emission. A: cause B: to cause C: causing D: caused
- 33.Do you know what ______ so much greenhouse gases in the air? A: producing B: has produced C: will produce D: produces
- Global warming is caused by human activities except the greenhouse effect.（ ）