Final answer:
The four major factors influencing Earth's climate are solar radiation, greenhouse gases, atmospheric circulation, and ocean currents. Two examples of anthropogenic factors that can influence climate are deforestation and burning fossil fuels.
Step-by-step explanation:
The four major factors influencing Earth's climate are:
- Solar Radiation: Sunlight is the primary source of energy that drives Earth's climate system. Variations in solar radiation can directly impact Earth's temperature and climate patterns.
- Greenhouse Gases: Certain gases, such as carbon dioxide and methane, trap heat in Earth's atmosphere, leading to the greenhouse effect. Changes in the concentration of greenhouse gases can influence Earth's climate.
- Atmospheric Circulation: Global wind patterns, such as the Hadley Cell and Polar Cell, play a crucial role in redistributing heat and moisture around the Earth. These circulation patterns help determine regional climates.
- Ocean Currents: Ocean currents, such as the Gulf Stream and the North Atlantic Drift, help transport heat from the equator to the poles. These currents influence regional climates and can moderate temperature.
Two examples of anthropogenic factors that can influence climate are:
- Deforestation: When forests are cleared for agriculture or urban development, it results in the release of carbon dioxide into the atmosphere. This contributes to the increase in greenhouse gases and influences Earth's climate.
- Burning Fossil Fuels: The combustion of fossil fuels, such as coal, oil, and natural gas, releases carbon dioxide and other greenhouse gases. This human activity contributes to the greenhouse effect and affects Earth's climate.