I have been to Saint Petersburg.

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.

His poetry is prosaic, lacking rhythm and rhyme.