Methane and air explosions occur in the well-known mixture range of 15% to 25% methane in air.

Methane and air explosions occur in the well-known mixture range of 15% to 25% methane in air. A: 正确 B: 错误

Methane and air explosions occur in the well-known mixture range of 5% to ( )% methane in air. A: 10 B: 15 C: 20 D: 25

Which of the following are greenhouse gases? A: Methane. B: Carbon dioxide. C: Argon. D: Freon gas.

The reason steam methane reforming has traditionally been favored over electrolysis is because whereas methane reforming directly uses natural gas, electrolysis requires ______._

Which of the following is not a drawback of making electricity by using methane gas?

Natural gas is primarily . A: ethane B: propane C: methane D: --

Natural gas is mainly made up of methane and other hydrocarbon gases.

It can be inferred that carbon dioxide and methane are largely responsible for the increased concentration of greenhouse gases.

Chemoautotrophs can survive on____alone.( ) A: minerals B: CO2 C: methane D: mineral and CO2