The Rocky Mountains and the Himalayas are two famous mountain chains.

The pawn chains in the middle of the board were strategically placed.

Food chains are important for maintaining the balance of ecosystems.

Cunningham chains are used in number theory to study prime numbers.

Many companies rely on global supply chains to source materials and distribute products.

Markov chains are widely used in various fields such as finance, biology, and computer science.

She bought several choke chains for her dogs.

We made paper chains to decorate the room.

Block chains are revolutionizing the way we secure and verify transactions.

The protein structure is composed of a main chain and side chains.