Here's why:
* Direct objects are the nouns or pronouns that receive the action of the verb.
* The verb in this sentence is "trap."
* The plants are performing the action of trapping, and the thing being trapped is heat.
Here's why:
* Direct objects are the nouns or pronouns that receive the action of the verb.
* The verb in this sentence is "trap."
* The plants are performing the action of trapping, and the thing being trapped is heat.