Check your sustainability foundations.

1 Waste

Which order best reflects the waste hierarchy?

A Prevent or reduce, reuse, then recycle where appropriate B Recycle, buy more, then discard C Burn everything first D Landfill before reuse

2 Energy

What does energy efficiency mean?

A Delivering a service with less energy input B Using more energy at all times C Switching every device on D Generating energy only from coal

3 Climate

What is a carbon footprint?

A An estimate of greenhouse-gas emissions associated with an activity, product, or entity B Only visible soot C A shoe measurement D The weight of recycled paper

4 Food waste

Which action can reduce edible household food waste?

A Plan meals, store food correctly, and use leftovers safely B Buy without checking existing food C Discard food at the best-before date automatically D Keep storage areas unorganized

5 Transport

Why can walking, cycling, or public transport reduce impact for suitable trips?

A They can reduce per-person fuel use and emissions B They always take no energy C They work for every person and route D They eliminate infrastructure

6 Water

Why repair a persistent leak?

A It prevents ongoing water loss and possible property damage B Leaks improve water pressure C Only visible water counts D Repair increases evaporation

7 Lifecycle

What is lifecycle thinking?

A Considering impacts from raw materials through production, use, and end of life B Looking only at purchase price C Assuming reusable is always better without use patterns D Ignoring maintenance

8 Repair

Why can repair be more sustainable than replacement?

A It may extend product life and avoid new material and manufacturing demand B Repair uses no resources ever C All products can be repaired safely D Replacement has no impact

9 Renewables

Which source is renewable on a human timescale?

A Solar energy B Coal C Crude oil D Natural gas

10 Green claims

What is greenwashing?

A Using misleading environmental claims to appear more sustainable than evidence supports B Publishing verified lifecycle data C Repairing a product D Reducing packaging material

11 Tradeoffs

Why is local production not automatically the lowest-impact option?

A Production method, storage, season, and transport mode also matter B Distance never matters C All local products are identical D Environmental impact cannot be compared

12 Priorities

How should a household choose sustainability actions?

A Focus on material impacts, feasibility, evidence, and lasting habits B Choose only visually impressive actions C Change everything at once without measurement D Ignore cost and accessibility