Environmental Science Trivia
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Sample Environmental Science Quiz Questions
A mix of easy, medium and hard — questions run from warm-up to expert, so there's a real challenge at every level. Think you know the answers? Play to find out.
These dense, tropical forests near the equator are home to more than half of all species on Earth despite covering only 6% of land.
Difficulty: Easy- Deserts
- Rainforests
- Grasslands
- Tundra
This 1992 international summit in Brazil established landmark agreements on climate change, biodiversity, and sustainable development.
Difficulty: Medium- Earth Summit
- Climate Conference
- Environment Congress
- World Forum
This theoretical limit, named after two Bell Labs researchers, caps the maximum efficiency of a single-junction solar cell at about 33%.
Difficulty: Hard- Shockley-Queisser limit
- Carnot limit
- Landsberg limit
- Detailed balance limit
This theory explains why islands have fewer species than mainlands and why larger, closer islands have more species than smaller, distant ones.
Difficulty: Medium- Unified neutral theory
- Continental drift theory
- Island biogeography theory
- Metacommunity theory
This biogeochemical cycle has been so disrupted by synthetic fertilizers that it now poses a greater environmental threat than carbon dioxide.
Difficulty: Hard- Phosphorus cycle
- Nitrogen cycle
- Sulfur cycle
- Carbon cycle
Organic materials like wood chips, agricultural waste, and plant matter used to generate energy are collectively called this.
Difficulty: Easy- Petroleum
- Natural gas
- Uranium
- Biomass
This theoretical framework proposes that most genetic variation is selectively neutral and diversity patterns result from random drift and mutation-drift balance.
Difficulty: Hard- Selectionist theory
- Neutral theory of molecular evolution
- Nearly neutral theory
- Shifting balance theory
The "three Rs" of waste management—reduce, reuse, and this third action—encourage consumers to process materials into new products.
Difficulty: Easy- Refuse
- Repair
- Rot
- Recycle
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