pick from the following.
1). deforestation
2). Dehydration
3). massive damage
4). influenza
5). colder weather
6). disease
7). toxins
8). winter wind

Fact 1: Agreenhouse is used to protect plants from the cold. Fact 2: Protect cold-sensitive plants from winter wind. Given the two facts above, what does a greenhouse protect plants from?
Answer:
8).