Fertilizer

Resources

Nitrogen symbol from periodic table

Understanding the Nitrogen Cycle

What is the nitrogen cycle? How do human activities such as using fertilizer affect the nitrogen cycle? How can this cause greenhouse gases?
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Understanding the Nitrogen Cycle
Massive algal bloom

Eutrophication: Why you should care about pond scum?

When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!
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Eutrophication: Why you should care about pond scum?