Answer: earthquakes
Explanation: I had the same question and that was the answer
The answer to this question is probably B. They were not limited to growing under water and could therefore spread in land. Gymnosperms are plants that produce seeds that are not carried in the ovary or fruit. Their seeds do not have an outer covering or shell. The Gymnosperms are believed to be the first plants to have seeds.
They have evolved to endure more as well as having been exposed to it from birth.
Most of them came from central africa and west africa.
The Tian Shan mountain range is located in the north and the west of Taklamakan Desert, which is located in Central Asia.
Happy Studying! ^=^
