The Ultimate Compost Quiz

Test your knowledge of composting!

1. Pick the vital ingredients you must have in this list to make compost.
Air
Correct. You need air in the form of carbon.
Water
Correct. You need water in the form of nitrogen.
Woodchips
Wrong. Woodchips aren’t vital to make compost, but you can certainly use them in your compost.
2. Can you compost oranges and lemons?
No
Wrong. You can in fact compost oranges and lemons, but it’s better to compost organic citrus fruits because the pesticides on non-organic skins hinder the composting process.
Yes
Yes, you can compost oranges and lemons, but it’s better to compost organic citrus fruits because the pesticides on non-organic skins hinder the composting process.
3. How often do bacteria double in number?
Every hour
Correct, bacteria double in number every hour. So one bacterium becomes over 8 million in just 24 hours.
Every 24 hours
Wrong, bacteria double in number every hour. So one bacterium becomes over 8 million in just 24 hours.
Every 7 days
Wrong, bacteria double in number every hour. So one bacterium becomes over 8 million in just 24 hours.

Keen to learn more about composting?

Check out Nicky Scott’s How to Make and Use Compost – The practical guide for home, schools and communities and watch the recording of the virtual launch here.

Composting is easy and fun, it saves you money and helps you grow lovely plants. More importantly, it is good for the environment, as it massively reduces the amount of noxious methane gas generated from burying food waste in landfill. It’s great for the soil and a great way to learn about nature. Written by Nicky Scott, the author of Reduce, Reuse, Recycle, this book shows you how to go about composting.

“Written with flair, this book will give you confidence as a beginner or improve your technique if you’re a habitual composter.”

– The Ecologist

“Clearly written and cross-referenced, this book draws on a wide composting experience”

– Sue Stickland, author of Back Garden Seed Saving

“Compost publishing doesn’t get any better. […] The insights, ideas and inspiration that flow from its pages lift it far beyond the ostensibly mundane practice of leaving dead stuff in a pile to rot.”

The Irish News 

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