What adjectives can be added to the following sentence to make it more informative?: The dog chased after the ball that I threw.
Adjectives describe (provide more information about) nouns/noun phrases, so let's identify the nouns in the sentence first.
The nouns in the sentence are dog and ball.
To make the sentence more informative, add some adjectives in front of these nouns:
The small dog chased after the red ball that I threw.
The gray dog chased after the large ball that I threw.