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Agro facts & stats

7 fact-checked facts about agriculture, crops, soil and farming science, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

The prefix 'agro' relates to what?

AnswerFields and farming

Agro comes from the Greek word for field.

What process do plants use to turn sunlight into food?

AnswerPhotosynthesis

Photosynthesis converts light, water and carbon dioxide into sugars.

Going deeper

Why do farmers plant legumes such as beans or clover in rotation?

AnswerThey add nitrogen to the soil

Legumes host bacteria that fix nitrogen from the air.

What is hydroponics?

AnswerGrowing plants without soil in nutrient-rich water

Hydroponic systems feed roots with dissolved nutrients.

Which insect is a key pollinator for many food crops?

AnswerHoneybee

Honeybees pollinate many fruits, nuts and vegetables.

Expert level

The Haber-Bosch process produces which compound used for fertilizer?

AnswerAmmonia

Haber-Bosch combines nitrogen and hydrogen into ammonia.

Most common crops grow best in soil with roughly what pH?

AnswerAbout 6 to 7

Slightly acidic to neutral soil suits most crops.

Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round