Between may 18 and august 7, 1980, mount saint helens erupted four times. what did the eruptions of mount saint helens teach scientists? a) seeding the slopes was necessary to prevent erosion. b) salvage logging was essential to protecting the arena from fire and insect threats. c) many of the initial pioneering species actually survived the eruptions. d) planting douglas fir trees was essential to recovering the forests.

C). Many of the initial pioneering species actually survived the eruptions.

1980 Mount Saint Helens volcanic eruptions was an example of ecological succession after a catastrophic event. Charlie Crisafulli was a ecologists who arrived at the volcanic site of Mount. Helen along with his colleagues to collect ecological data. He noted the development of ecological relationships across the volcanic landmass. He documented the types, amounts and distribution of surviving organisms, which further took forward the responsibility of colonization in a destructed habitat.

chemical weathering

explanation:

really dont know just need some points