To answer this question, you need to understand the natural causes of global warming.
Option A) Earthquakes - This option is incorrect because earthquakes do not directly contribute to global warming. While earthquakes can release greenhouse gases from underground sources, such as methane, the amount released is relatively small compared to human activities like burning fossil fuels.
Option B) Floods - This option is incorrect because floods also do not directly contribute to global warming. While flooding can have indirect effects on the environment, such as damaging infrastructure and releasing stored carbon from wetlands, it does not significantly contribute to the increase in greenhouse gases and global warming.
Option C) Forest fires - This option is correct because forest fires can release large amounts of carbon dioxide (CO2) into the atmosphere. When trees and vegetation burn, they release the carbon stored in their biomass, which adds to the greenhouse effect and contributes to global warming.
Option D) Landslides - This option is incorrect because landslides do not directly contribute to global warming. While landslides can cause localized environmental changes, such as altering vegetation cover or releasing stored carbon, their impact on global greenhouse gas emissions is minimal.
The correct answer is C) Forest fires. Forest fires can release significant amounts of carbon dioxide into the atmosphere, contributing to global warming.