http://news.bbc.co.uk/2/hi/science/nature/743879.stm
The radiation poisoning from the Chernobyl disaster are not disappearing as quickly as anticipated. Some food restrictions will have to stay in place for 50 years or more. The levels of caesium in the UK were higher than expected. Cumbrian sheep, among other animals, are still contaminated.
Q1. Name 3 items that will be restricted from Russia for the next 50 years.
Q2. How much of an increase was found in the half life of the chemical caesium?
Q3. Describe the change pattern in radioactivity regarding food and water.
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