Verification work on discipline of vital safety

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Uploaded: 23.10.2014
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1. What is the extent of land degradation in the Russian Federation?
Comments on the decision:
We suggest you to perform a self-test to more accurately determine the degree of your preparedness on the subject. Questions are mainly delivered in such a way that, when answered, you were able to express their views on the matter, taking into account the studied material. Therefore, in response, no need to search in the text literal answer to this question and try to answer it yourself.
2. What effects of human exposure to ultraviolet radiation?
10 questions, score 5


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