MPTET Exam Biology - 17th February 2025

1. When pressure increases on a piece of ice, what happens to its melting point?
   A. Decreases
   B. Increases
   C. Remains unchanged
   D. Changes for some reason
   Correct Answer: A
2. What is a long chain of carbon atoms called?
   A. Ribosome
   B. Hydrocarbon
   C. Polymer
   D. Fiber
   Correct Answer: C
3. Electromagnetic radiation is a type of energy that is transmitted through space in the form of:
   1. Electric field
   2. Magnetic field
   Choose the correct code:
   A. Only 1
   B. Only 2
   C. Both 1 and 2
   D. Neither 1 nor 2
   Correct Answer: C
4. Marble cancer is caused by:
   A. Water vapor in the air
   B. Acid rain
   C. CFCs
   D. Carbon dioxide
   Correct Answer: B
5. Who proposed the universal law of gravitation?
   A. Galileo
   B. Einstein
   C. J. J. Thomson
   D. Newton
   Correct Answer: D