26. What is the name of the process by which water changes from a solid to a liquid?
A) Melting
B) Freezing
C) Boiling
D) Condensation
Answer: A) Melting
27. Who discovered the first successful treatment for tuberculosis?
A) Louis Pasteur
B) Edward Jenner
C) Robert Koch
D) Selman Waksman
Answer: C) Robert Koch
28. Who discovered the principle of the conservation of mass?
A) Antoine Lavoisier
B) Dmitri Mendeleev
C) Marie Curie
D) Ernest Rutherford
Answer: A) Antoine Lavoisier
29. What is the name of the process by which plants use carbon dioxide to make glucose?
A) Photosynthesis
B) Respiration
C) Fermentation
D) Digestion
Answer: A) Photosynthesis
30. Who discovered the first successful treatment for syphilis?
A) Paul Ehrlich
B) Robert Koch
C) Louis Pasteur
D) Selman Waksman
Answer: A) Paul Ehrlich
