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Primary 6 Science: Man's Impact on the Environment Practice
Real Primary 6 Science questions on Man's Impact on the Environment, pulled directly from the Olibits question bank — the same questions a child would actually see, not separately written for this page.
Curriculum alignment
Science Teaching & Learning Syllabus, Primary Three to Six (MOE, 2023 syllabus)
Science is not a taught subject at P1/P2 under MOE's own syllabus — our P1/P2 Science content is offered as enrichment beyond the official syllabus, not as a claim of syllabus coverage at those grades.
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Real Man's Impact on the Environment practice questions
What term describes the large-scale cutting down of trees, often to clear land for farming, buildings, or logging?
Recycling
Deforestation ✓
Conservation
Reforestation
Deforestation refers to the widespread clearing of forests, which removes large numbers of trees from an area.
Which of the following is a direct effect of deforestation on wildlife?
Loss of habitat, forcing animals to migrate or die out ✓
Cleaner rivers flowing through the area
An increase in the number of animal species living there
Cooler temperatures in the cleared area
When forests are cleared, animals lose the trees and plants they depend on for shelter and food, forcing them to migrate elsewhere or face decline.
How does cutting down large areas of forest usually affect the soil?
It has no real effect on the soil
It instantly makes the soil more fertile
It completely prevents flooding in the area
It leads to soil erosion, as tree roots no longer hold the soil in place ✓
Tree roots normally hold soil together and absorb rainwater; without them, soil is more easily washed or blown away, causing erosion.
Trees absorb carbon dioxide from the air as they grow. How does large-scale deforestation contribute to climate change?
It removes carbon dioxide from the air more quickly
It immediately cools down the planet's temperature
It has no connection to the amount of gas in the air
Fewer trees remain to absorb carbon dioxide, adding to greenhouse gases ✓
With fewer trees to absorb carbon dioxide, more of this greenhouse gas builds up in the atmosphere, contributing to global warming.