51. Who discovered the first successful treatment for tuberculosis?
A) Robert Koch
B) Edward Jenner
C) Louis Pasteur
D) Selman Waksman
Answer: A) Robert Koch
52. What is the name of the process by which a solid changes directly into a gas without passing through the liquid state?
A) Melting
B) Boiling
C) Sublimation
D) Condensation
Answer: C) Sublimation
53. Who discovered the first successful treatment for leprosy?
A) Gerhard Hansen
B) Robert Koch
C) Louis Pasteur
D) Selman Waksman
Answer: A) Gerhard Hansen
54. What is the name of the process by which energy is stored in chemical bonds and then released during a chemical reaction?
A) Photosynthesis
B) Respiration
C) Fermentation
D) Combustion
Answer: D) Combustion
55. Who discovered the first successful treatment for syphilis?
A) Paul Ehrlich
B) Robert Koch
C) Louis Pasteur
D) Selman Waksman
Answer: A) Paul Ehrlich
