(i will mark as brainlest if right) what can we learn from the eruptions of mount saint helens? a. succession after the mount saint helens eruptions followed the course predicted by succession theory. b. ecosystems sometimes recover in a patchwork pattern after a jor disturbance. c. the fastest way for ecosystems to recover after a disturbance is to leave them alone. d. human interventions are the best way for ecosystems to recover after a major disturbance.

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.