Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


In case of rice, at least in China, the main pollutants are metals, like copper, zinc, lead and foremostly - cadmium. The last one is especially dangerous because it's easily absorbed by plants and can cause or contribute to cancer. 

This kind of soil pollution is mainly caused by unclean water supplies used for irrigation of fields. In case of China, water streams are polluted by waste coming from mines, situated upstream of the fields (which is quite natural, given that you mine in the mountainside and streams shoot out there as well).
0 0 0
About 50 to 100 million  tonnes of methane every year  is produced through rice field which is the most largest  man made source of methane
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts