Watermelon Snow: Health and Ecology

Watermelon snow is a unique phenomenon where snow appears red due to algae containing astaxanthin. This pigment helps the algae survive by absorbing light and melting surrounding snow. Watermelon snow is an indicator of climate change, thriving in slightly warmer temperatures. While it may look and smell like a watermelon snow cone, consuming it can cause diarrhea, though lab tests haven't confirmed its toxicity. It's best to avoid eating it due to unknown contaminants.

What gives watermelon snow its distinctive color?

• Artificial syrup

• Red algae

• Mineral deposits

• Food coloring

What pigment is responsible for the red color in the algae found in watermelon snow?

• Melanin

• Astaxanthin

• Carotene

• Chlorophyll

How do the algae in watermelon snow contribute to snow melting?

• By absorbing sunlight

• By releasing heat

• By freezing the water

• By reflecting light

Why are these algae considered indicators of climate change?

• They are unaffected by temperature changes

• They are found only in tropical regions

• They prefer slightly warmer temperatures

• They thrive in colder temperatures

What effect might the algae have on the surrounding environment?

• Decrease snow reflectivity

• Increase snow reflectivity

• Prevent snow from melting

• Cause snow to harden

What is a potential health risk of consuming watermelon snow?

• Nausea

• Diarrhea

• Fever

• Headache

Why is it advised not to eat watermelon snow?

• It is illegal

• It is too cold

• It may contain unknown substances

• It tastes bad