Flashcard on Excess Fertilizer Use

Front

What are the two main fertilizers that farmers add to their fields?

Back

Nitrogen and Phosphorus

Front

What percentage of applied nitrogen is estimated to run off into the environment?

Back

65%

Front

Which country generates the most nitrogen pollution?

Back

China

Front

What happens when countries undersupply nitrogen fertilizers?

Back

They create nitrogen mining

Front

How much phosphorus do farmers apply globally each year?

Back

25 million tonnes

Front

Which country produces one-fifth of the world’s excess phosphorus?

Back

India

Front

What is the main environmental issue caused by excess fertilizers? Options: Loss of biodiversity, Soil erosion, Water pollution, Air pollution

Back

Water pollution

Front

What is the term for nutrients that are not used by crops and run off into the environment?

Back

Excess nutrients

Front

Which country is known for producing negative nitrogen pollution?

Back

None of the above

Front

What is one benefit of using fertilizers mentioned in the text?

Back

Higher crop yields