Geothermal energy brings air emissions including( ).
A: carbon dioxide
B: all the options
C: hydrogen sulfide
D: methane
A: carbon dioxide
B: all the options
C: hydrogen sulfide
D: methane
举一反三
- Geothermal energy brings air emissions including（ ）.
- "Greenhouse gases" in Para. 2 refer to ________________. A: oxygen B: hydrogen C: carbon dioxide D: air
- Scientists figured out that human bodies are basically made of（） A: hydrogen, carbon, nitrogen, and oxygen atoms B: water vapor, ammonia, carbon dioxide, methane and hydrogen C: biomolecules and water D: evolutionary molecules
- What will the newly-launched observation satellite do? A: It will record carbon dioxide emissions and absorption worldwide. B: It will identify carbon dioxide emission sources with higher efficiency. C: It will monitor carbon dioxide levels in Earth’s atmosphere. D: All of the above.
- The synonym of CO2 is .（ ）。 A: hydrogen B: carbon monoxide C: carbon dioxide D: oxygen