question_stem: What is an example of humans building houses in a ecosystem and causing change in the environment as a result?
choices.text: a dog house is placed in a fenced in back yard a birdbath is placed in a park with a low squirrel population a city is built over a park and deer lose their home a small house is built in the forest and animals are fed there
choices.label: A B C D
fact1: humans building homes in an ecosystem causes that environment to change