Answer:
What was the primary cause of the London Fog of 1952? B. Cold air led to heavy use of coal, and the smoke from the coal fires was trapped close to the ground by a temperature inversion. ... A floating pile of oil-soaked logs in the Cuyahoga River caught fire, and the resulting media attention led to the first Earth Day.
Explanation:
22 countries 100% Correct
1.you can use it for school
2.you can use it for social life
3.you can use it for work or health
Not 100% but I would say rivers, oceans, and lakes because wetlands are sometimes protected and lakes are not protected if they are artificial.
