The two crossword solutions for the term 'Cause of Some Poisoning' are RADON (5 letters) and LEAD (4 letters). RADON is a naturally occurring radioactive gas that can seep into homes and buildings, leading to long-term exposure and potential health risks. LEAD is a heavy metal that can be found in paint, soil, and water, and can cause serious health problems if ingested or inhaled. Both RADON and LEAD can cause poisoning if not properly managed.