Which sentence has an adjective clause? mike rode his bike on mountain trails because he found them challenging. gary donated to charity whenever he could. liz, who could always make people laugh, was loved by the whole block. ever since adam was a little boy, he had his father in the fields.

Adjectives so as to speak are descriptive words on nouns. Clauses are phrases with subjects and verbs. An adjective clause is a phrase with subject and verb that functions in description.
The correct sentence with adjective clause is: liz, who could always make people laugh, was loved by the whole block
The adjective clause is: who could always make people laugh
This adjective clause describes Liz. 

Photosynthesis. . .