Who is Dr. Gel known for in the field of science? (Medium)
#1: Leading research in gerontology
#2: Pioneering studies in renewable energy
#3: Developing advanced algorithms for AI
#4: Discovering a cure for a rare disease
What significant contribution to environmental science is Dr. Gel credited with? (Advanced)
#1: Development of biodegradable plastics
#2: Discovery of a new species
#3: Creation of a water purification system
#4: Invention of a renewable energy source