Chemistry of the Environment
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Preview questions (no answers)
- 1.
Which of these is a natural source of water?
A.Aquifers
B.Plastic bottles
C.Cooling towers
D.Drainage pipes
- 2.
If a sample of water boils at , what can be concluded about the sample?
A.It is pure water
B.It contains dissolved impurities
C.It is distilled water
D.It is under very low pressure
- 3.
Which process in the water cycle returns water from the atmosphere to the Earth's surface as rain or snow?
A.Evaporation
B.Condensation
C.Precipitation
D.Transpiration
Download the worksheet for Chemistry of the Environment - Water to practice offline. It includes additional chapter-level practice questions.
Air quality and climate
SubtopicAir quality and climate under Chemistry of the Environment for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Which gas produced by lightning strikes contributes to the formation of acid rain?
A.Methane
B.Nitrogen oxides
C.Argon
D.Carbon monoxide
- 2.
What is the pH of 'clean' rain typically like?
A.Exactly 7.0
B.Slightly acidic (about 5.6)
C.Very alkaline (about 10.0)
D.Extremely acidic (about 1.0)
- 3.
Which gas is often used as a propellant in aerosols and has been linked to climate change?
A.Nitrogen
B.Argon
C.Methane
D.Oxygen
Download the worksheet for Chemistry of the Environment - Air quality and climate to practice offline. It includes additional chapter-level practice questions.
Fertilizers
SubtopicFertilizers under Chemistry of the Environment for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Which fertilizer has the highest percentage of nitrogen by mass among these options?
A.Urea
B.Ammonium sulfate
C.Ammonium chloride
D.Potassium nitrate
- 2.
What is the primary role of phosphorus in NPK fertilizers regarding plant health?
A.To give leaves their green color
B.To help in energy transfer and root development
C.To kill pests and insects
D.To keep the soil temperature constant
- 3.
Which of the following acids is used to produce 'triple superphosphate' fertilizer from phosphate rock?
A.Nitric acid
B.Sulfuric acid
C.Phosphoric acid
D.Hydrochloric acid
Download the worksheet for Chemistry of the Environment - Fertilizers to practice offline. It includes additional chapter-level practice questions.
Greenhouse effect and global warming
SubtopicGreenhouse effect and global warming under Chemistry of the Environment for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Which of these gases does NOT contribute significantly to the greenhouse effect?
A.Carbon dioxide
B.Methane
C.Nitrogen
D.Water vapor
- 2.
What is the main reason for the rapid increase in atmospheric since the 1800s?
A.Increased volcanic activity
B.The Industrial Revolution and fossil fuel use
C.Changes in the Earth's orbit
D.Natural variations in plant growth
- 3.
Which human activity specifically increases methane levels from waste?
A.Recycling glass
B.Decomposition of organic matter in landfills
C.Burning plastic
D.Composting in open air
Download the worksheet for Chemistry of the Environment - Greenhouse effect and global warming to practice offline. It includes additional chapter-level practice questions.