Some of the main causes of pollution include industrial emissions, poor disposal of wastes, mining, deforestation, use of fossil fuels and agricultural activities. Pollution can affect the air, the land and water bodies throughout the world.
Most of Ontario Canada is in the Eastern Time Zone. The areas of Ontario, west of 90 west longitude, are in the Central Time zone.
In the map above, Saskatchewan is the rectangle of Central Standard Time protruding into Mountain Standard Time in Canada, visually displaying that geographically, Saskatchewan is in the Mountain Time Zone. The eastern part of Saskatchewan will permanently be one hour ahead of Mountain Standard Time (the equivalent of Central Standard Time). 2  In the western part of Saskatchewan (e. g., all points west of Saskatoon), municipal governments will still be able to choose what time zone to follow.