Ozone is a gas comprised of three oxygen (O3) atoms. It is unstable and reacts easily to other gases. In its natural state, it is a component in several levels of the atmosphere. At high altitudes ...

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Partly cloudy with a high of 75 °F (23.9 °C) and a 40% chance of precipitation. Winds SW at 14 to 19 mph (22.5 to 30.6 kph). Night - Mostly cloudy. Winds variable at 9 to 16 mph (14.5 to 25.7 kph).

Students attend class at Ecole Alex Manoogian in Montreal, Quebec (Photo by Azniv Stepanian/Wikimedia Commons) The "Ethics and Religious Culture" (ECR) course in Canada aimed to highlight the ...