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Environmental Change and Pollution — Free MYP1 Sciences Practice Questions
1QuestionAir Water and Soil PollutionConcept Practice
2 marks~3 minCriterion A
The diagram shows a river next to a factory, a farm, and some houses. The factory has a pipe that leads directly into the river.
a
Identify which structure is the most likely source of water pollution in the river. [1]
b
Describe why this structure causes water pollution. [1]
Solutions
2QuestionAir Water and Soil PollutionAssessment Practice
4 marks~6 minCriterion C
A factory sits next to a river. Its chimney pours smoke into the air. A pipe releases dirty water into the river. Downstream, fish are floating dead and thick green algae is growing near the pipe.
a
Name one type of pollution shown in the diagram. [1]
b
Describe how the dirty water from the pipe harms the fish in the river. [2]
c
The factory owner says the chimney smoke cannot harm the river because the smoke goes into the air, not the water. Do you agree or disagree? Give a reason for your answer. [1]
Solutions
3QuestionDeforestation and Habitat DestructionConcept Practice
3 marks~5 minCriterion B
The table below shows the forest area in a region over several years.
| Year | 2010 | 2012 | 2014 | 2016 | 2018 |
|---|---|---|---|---|---|
| Forest area (km²) | 500 | 450 | 410 | 370 | 330 |
a
Calculate the decrease in forest area from 2010 to 2012. [1]
b
Describe the overall pattern in forest area shown by the data. [1]
c
Identify one human activity that could cause this change, and state how it removes forest. [1]
Solutions
4QuestionNatural vs Human-Induced Environmental ChangeAssessment Practice
4 marks~6 minCriterion D
A local pond has too much algae growing in it. Scientists think two things caused this: a very hot summer and fertilizer washing off a nearby farm into the pond.
a
Identify which cause the local community could more easily control. [1]
b
Describe one action the community could take to reduce that cause. [1]
c
Describe one reason why fixing the fertilizer problem is harder than waiting for the hot summer to end. [2]
Solutions
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