Question

Which of these statements best describes how volcanic eruptions contribute to global climate change?

They form ash particles which heat the Earth.
They produce fertile soil which cools the Earth.
They release water vapor which heats the Earth.
They eject sulfur dioxide which cools the Earth.

Answer 1

They eject sulfur dioxide which cools the Earth.

Answer 2

A variation in the temperature of the Earth due to greenhouse gases causes global cooling or heating.

The generation of smoke from factories, burning of petrol and coals, use of CFC products have altered the temperature of the planet.

The correct answer is:

• Option A.  They form ash particles which heat the Earth.

• Option D. They eject sulfur dioxide, which cools the Earth.

 

This can be explained as:

• During volcanic eruptions ash from the volcanoes gets dispersed in the air polluting the environment and increasing the temperature.

• Sulfur dioxide generated from volcanoes brings the temperature down and causes cooling.

Therefore, both factors affect global climate change.

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