COASTAL FLOOD WATCH: Issued when there is a potential for at least moderate tidal flooding in the next one to two days. The chance for moderate, major, or record flooding levels triggers a coastal flood watch.
The false blister beetles, cardinal beetles, and soldier beetles also produce cantharidin. It is a poisonous blistering agent and can cause severe chemical burns. However, these same properties make it effective as a topical medication.
Rusting (of iron) is a common example of corrosion. Other metals, like magnesium, aluminium, zinc and copper, also get corroded by the prolonged action of air. Copper forms a green solid on its surface, whereas the others (except iron) form greyish white solids.