Which table shows the greenhouse gases primarily released by each human activity?

Question

Human Activity - Greenhouse gas
raising cattle - methane
burning trees - carbon dioxide
filling landfills - methane
or
Human Activity - Greenhouse Gas
raising cattle - methane
burning trees - nitrous oxide
filling landfills - nitrous oxide
or
Human Activity - Greenhouse Gas
raising cattle - carbon dioxide
burning trees - carbon dioxide
filling landfills - methane
or
Human Activity - Greenhouse Gas
raising cattle - nitrous oxide
burning trees - methane
filling landfills - carbon dioxide

Answer 1

The table that accurately shows the greenhouse gases primarily released by each human activity is:

Human Activity - Greenhouse Gas

• raising cattle - methane
• burning trees - carbon dioxide
• filling landfills - methane

This is because:

• Raising cattle primarily produces methane (due to enteric fermentation).
• Burning trees primarily releases carbon dioxide (from combustion).
• Filling landfills produces methane as organic waste decomposes anaerobically.

The other options contain incorrect associations of greenhouse gases with the respective human activities.