Seed ferns thrive in humid environments. At the beginning of the Cretaceous Period, seed ferns dominated landscapes. However, towards the end of the Cretaceous Period, a large comet collided with Earth which blocked sunlight from reaching Earth’s surface. As a result of the impact, the seed ferns were wiped out.
What condition on Earth led to the extinction of seed ferns?
Responses
reduction in the availability of water
reduction in the availability of water
increase in land surface for germination
increase in land surface for germination
reduction in the capability to perform photosynthesis
reduction in the capability to perform photosynthesis
increase in competition from other plant species
1 answer
reduction in the capability to perform photosynthesis
49 answers