Most outstanding danger at present for the survival of living beings on earth is:
Correct answer: B. Radiation hazard
- A. Desertification
- B. Radiation hazard
- C. Deforestation
- D. Gleization
Explanation
Radiation hazard is treated in environmental pollution texts as an especially serious threat because ionising radiation can damage living tissues and cause heritable mutations and cancers. Desertification and deforestation are major ecological problems, but this question’s standard environmental-hazard answer is radiation hazard.
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