Think about the article. Why did Heinz grow tomatoes under extreme conditions?

To mimic the climate in England
To mimic the environment on Mars
To help ketchup stay fresh even longer
To test a new ingredient for ketchup

The correct answer is to mimic the environment on Mars. The article mentions that Heinz grew tomatoes under extreme conditions to replicate the harsh climate and environment on Mars in order to study how plants could be grown in such conditions for potential future colonization or sustainable farming on the planet.