At the school sports festival, we did a three-legged race.

Xanthine is a type of alkaloid, which is found in coffee and tea.

This figure is an acute triangle.

Aldaric acid is a compound produced by the oxidation of sugars.

The Andes is the longest mountain range in the world, located in South America.

This factory reuses the byproducts produced during the manufacturing process.

The automobile industry is one of Japan's major industries.

Borates play an important role in chemical reactions.

This mineral contains carbonate.

We had a picnic at the foothill.