Define these terms in your own words.

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Sunspots alter the amount of energy Earth gets from the Sun, but not enough to impact global climate change, a new study suggests. The Sun's role in global warming has long been a matter of debate and is likely to remain a contentious topic.Scientists have pondered the link between the Sun and Earth's climate since the time of Galileo. There has been an intuitive perception that the Sun's variable degree of brightness-the coming and going of sunspots for instance-might have an impact on climate. Most climate models already incorporate the effects of the Sun's waxing and waning power on Earth's weather. The number of spots cycles over time, reaching a peak every 11 years, but sunspotdriven changes to the Sun's power are too small to account for the climatic changes observed in historical data. The difference in brightness between the high point of a sunspot cycle and its low point is less than $0.1$ percent of the Sun's total output.

What can be inferred from this passage?

A. Sunspots on the Sun do not affect global climate change.

B. Sunspots greatly alter the amount of energy Earth gets from the Sun.

C. It has long been thought that sunspots change Earth's climate.

D. The amount of energy output from a sunspot changes drastically during its cycle.

Define these terms in your own words.

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