Urban Roosts: Cause and Effect

An EFFECT is what happened in the story. A CAUSE is why it happened. Example: Because the window was open, the bird flew in. CAUSE: the window was opened. EFFECT: the bird flew in. Choose the best CAUSE or EFFECT from the drop down list to finish each sentence.
Subject: Science
Grade: 3
NJ.5.10. - Human Interactions and Impact: Explain how meeting human requirements affects the environment.