When we want to describe how something or someone changes, we can use twocomparatives with and:The balloon got bigger and bigger.Everything is getting more and more expensive.Grandfather is looking older and older.We often use the with comparative adjectives to show that one thing depends onanother:The faster you drive, the more dangerous it is.(=When you drive faster, it is more dangerous.)The higher they climbed, the colder it got.=When they climbed higher, it got colder.)