Which of the following statements is incorrect regarding climate change factors?

  1. Volcanic eruptions contribute to climate cooling
  2. Changes in Earth's orbit can influence seasonal sunlight distribution
  3. Ocean currents distribute heat across the planet
  4. Human activities have no role in climate change

Answer (Detailed Solution Below)

Option 4 : Human activities have no role in climate change

Detailed Solution

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Explanation:

Climate Change Factors

The statement "Human activities have no role in climate change" is incorrect. Human activities, especially the burning of fossil fuels, deforestation, and industrial processes, have significantly contributed to climate change by increasing greenhouse gas concentrations in the atmosphere, leading to global warming.

Analyzing the Given Options

  1. "Volcanic eruptions contribute to climate cooling." (Correct)

    • Volcanic eruptions release sulfur dioxide into the atmosphere, forming aerosols that reflect sunlight and cause temporary climate cooling.

  2. "Changes in Earth's orbit can influence seasonal sunlight distribution." (Correct)

    • Milankovitch cycles, which include changes in Earth's orbit, axial tilt, and precession, affect the distribution and intensity of sunlight, influencing long-term climate patterns.

  3. "Ocean currents distribute heat across the planet." (Correct)

    • Ocean currents play a crucial role in regulating climate by redistributing heat from the equator to the poles, influencing weather and climate patterns.

  4. "Human activities have no role in climate change." (Incorrect)

    • Human activities, such as burning fossil fuels, deforestation, and industrial activities, have significantly increased greenhouse gas concentrations, contributing to global warming and climate change.

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