Answer:
1. Cloud cover
2. Air pollution
3. latitude of a location
California current.
I already knew this answer but a tip to help eliminate answers is that it said "western coastline". Florida is no where close to there. it's on the east side or north America and south. Then Alaska is on the west side but it's south-west, and i'm just gonna gO oUt oN a LiMb and say that the canaries current is is near canary because it is named after that and canary is in Spain so yeah
I believe its a call to an national emergency or crisis and all harbors are to be closed down I’m not 100 percent sure
Yes it’s hard to find because it’s rare also some can be found in South Africa