With the canopy gone, sunlight causes algae to grow, which feeds insects.

Too much sunlight can cause cold sores to flare.

In spring, the warm sunlight caused the great mass of ice to give off moisture rather than to take it.

If abroad during the day, the sunlight causes them to quickly fade away to the ethereal plane where they cannot return.

The sunlight was causing the frost to disappear, even as he watched.

You haven't stated any evidence that sunlight causes anything to start from nothing to even the most basic form of life.

She lifted her hand so that the sunlight caused the stone to blaze with color.

Direct sunlight causes the leaves to turn brown and fall off, so it prefers filtered light.

Proponents of space mirrors say there is no evidence to date that reflected sunlight would cause harm, but agree on the need for environmental studies.

Bright light or sunlight can cause fading of transfer over time.