What is the Greatest Threat to Plant Diversity

Question

What is the greatest threat to plant diversity?
A)insects
B)grazing and browsing by animals
C)pathogenic fungi
D)competition with other plants
E)human population growth

Accepted Answer

Human population growth, with its associated habitat destruction, pollution, introduction of non-native species, and climate change, is considered the greatest threat to plant diversity. The other options listed may also pose threats, but they are not considered as significant as human impact.