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Lichens consist of a fungus hosting algae. The fungal species provides protection and support, while the algal species provide food from sunlight. This is called symbiosis because the two types of living things form a close and long-term relationship that benefits them both.

Shingles is a disease caused by the same virus that causes chicken pox. After the first chickenpox infection, the virus can stay inside nerve cells without causing symptoms. But sometimes the virus ‘reactivates’ meaning it reappears and causes a painful rash on the skin known as shingles.

True. Some craters at Mercury’s poles have regions of permanent shadow in which water can freeze. Without direct sunlight or a warmed atmosphere, the ice never melts.

Cocoa beans are the main ingredient of chocolate. These beans come from the seed pods of the Theobroma cacao tree. The beans are roasted, ground and combined with other ingredients to form a sweet treat.

Arsenic, lead and cyanide are all toxic chemicals but dihydrogen monoxide is another name for water! “Di” means two as in two hydrogens. And “mono” means one, as in one oxygen. That’s another way to say H2O!