Answer:
Both the tundra and the rainforest would cease to exist.
Step-by-step explanation:
If the earth were limited to an orbit every 600 days, we would have 600 days of uninterrupted sun and 600 days of uninterrupted night, which would cause extremely hot temperatures on one side of the earth, while the other side would face a glacial period. In any case, both the tundra and the rainforest would cease to exist.
The tundra needs lower temperatures to be established. If the tundra were subjected to 600 days of intense, uninterrupted sunshine, it would not be formed and would cease to exist like time.
Similarly, she would die if she were subjected to 600 days of uninterrupted night, because she needs sunlight for plants to grow and perform photosynthesis, which is essential for their survival.