Q: Fact 1: Agreenhouse is used to protect plants from the cold. Fact 2: Many orchids are rewarding indoor plants. Given the two facts above, what uses a greenhouse to be protected from the cold?

OPT:
(i). orchids.
(ii). Roundworms.
(iii). freezing.
(iv). clouds.
(v). animals.
(vi). organisms.
(vii). our planet.
(viii). monkeys.
The answer is:
(i).