American novel is the answer.
Answer:
It helps by using mostly recycled material instead of natural resources.
Explanation:
According to the passage, an earth ship is a home that is designed to make use of recycled materials in an effort to save the planet and conserve energy. This is important and essential for people that want to go off the grid and use less of the non-renewable earth resources.
The inference that can be made about how building earthships impacts the environment is that it helps by using mostly recycled material instead of natural resources.
what is wrong with your question all the sentences are exactly the same.
