this is the main human activity that contributes to global warming
massive dumping of pesticides into the oceans
high demand and depletion of the world's oil supply
burning of fossil fuels***
increase levels of chlorine poured into shorelines
The main human activity that contributes to global warming is the burning of fossil fuels. To understand why this is the case, we need to break it down:
1. Fossil fuels: Fossil fuels include coal, oil, and natural gas. These energy sources have been formed over millions of years from the remains of ancient plants and animals. They contain a high concentration of carbon.
2. Burning fossil fuels: When we burn fossil fuels to generate electricity, power vehicles, or heat homes and industries, they release carbon dioxide (CO2) and other greenhouse gases into the atmosphere.
3. Greenhouse effect: Once released, these greenhouse gases trap heat in the Earth's atmosphere, similar to how a greenhouse traps heat. This leads to an increase in the Earth's average temperature, known as global warming.
4. Consequences: Global warming has numerous detrimental effects, including rising sea levels, more frequent and severe heatwaves, droughts, stronger storms, and disruptions to ecosystems.
So, out of the options you provided, the burning of fossil fuels is the main human activity contributing to global warming. However, it is important to note that other activities you mentioned, such as the high demand and depletion of the world's oil supply, also indirectly contribute to global warming by promoting the extraction and burning of fossil fuels.