Question

_________ and chlorofluorocarbons (CFCs) are two hydrocarbons that can drastically alter our atmosphere.

• A. Methane
• B. Ethane
• C. Propane
• D. Butane

Answer 1

The correct option is A Methane

Methane and chlorofluorocarbons (CFCs) are two hydrocarbons that can drastically alter our atmosphere. Methane is oxidized into carbon dioxide ($C{O}_2$), which increases the amount of this substance in the atmosphere and adds to the greenhouse effect and global warming. CFCs are hydrocarbons used in refrigeration and aerosol cans. High up in the atmosphere, they produce chlorine and reduce the ozone layer, which protects the earth from ultraviolet radiation.