Chemistry
Environmental Chemistry
Grade 12 · High School
Answer every question first, then press Finish to see your score and explanations.
- Question 1 of 20Easy
The gas mostly produced by burning fossil fuels that causes the greenhouse effect is ...
- Question 2 of 20Easy
Acid rain is mainly caused by ... gases.
- Question 3 of 20Easy
The ozone layer in the stratosphere functions to ...
- Question 4 of 20Easy
The main air pollutant from motor vehicles that is harmful to blood is ...
- Question 5 of 20Easy
The compound that most contributes to ozone layer depletion is ...
- Question 6 of 20Easy
Detergent waste containing phosphate entering water bodies can cause ...
- Question 7 of 20Medium
The greenhouse gas largely produced by livestock and wetlands is ...
- Question 8 of 20Medium
Acid rain can damage marble buildings because the following reaction occurs ...
- Question 9 of 20Medium
gas is dangerous to humans because ...
- Question 10 of 20Medium
The water treatment process used to kill germs usually employs ...
- Question 11 of 20Medium
A high BOD (Biochemical Oxygen Demand) value in water indicates ...
- Question 12 of 20Medium
In air, can be oxidised to , which then forms ...
- Question 13 of 20Medium
One effort to reduce air pollution in cities is ...
- Question 14 of 20Medium
Water hardness is mainly caused by ... ions.
- Question 15 of 20Hard
The reaction depicting ozone depletion by a chlorine atom is ...
- Question 16 of 20Hard
Global warming can be slowed by applying green chemistry principles, for example ...
- Question 17 of 20Hard
Aerobic biological treatment of wastewater makes use of ...
- Question 18 of 20Hard
Photochemical smog forms from the reaction between ...
- Question 19 of 20Hard
The principles of green chemistry emphasise ...
- Question 20 of 20Hard
gas in the atmosphere reacts with water to form ...