Answer:
Mercury has the widest variation in surface temperatures between night and day of any planet in the solar system.
Explanation:
Please submit the rest of the question please :)
A. Plants and animals do not interact with each other.
Plants and animals HAVE to interact with each other in an ecosystem. Some animals may need to eat certain plants to stay alive. Plants also help provide c02 for the atmosphere.
<span>the answer is physical boundary</span>