How many adjectives appear in following sentence? This dent on my door was caused by that ball on the green grass.

a. One

b. Four

c. Six

d. Five

Adjective is a word that describes a noun or pronoun. In this sentence thereis one adjective "green". Adjectives usually come just before the noun. This is also the case in this sentence. Grass is the noun, and is described with the adjective "green".