A) 1905
B) 1923
C) 1879
D) 1897

A) Spherical
B) Flat
C) Curved
D) Hexagonal

A) The absence of black holes
B) The existence of gravitational waves
C) The reversal of time
D) The existence of parallel universes

A) Three
B) Four
C) Two
D) Six

A) Reflection diffraction
B) Electromagnetic deflection
C) Optical refraction
D) Gravitational lensing

A) Voltage is equivalent to current
B) Gravity is equivalent to acceleration
C) Momentum is equivalent to energy
D) Charge is equivalent to mass

A) The distance between galaxies
B) The curvature of a wormhole
C) The circumference of the Earth
D) The event horizon of a black hole

A) As the interaction of strong and weak forces
B) As the transfer of particles
C) As the curvature of spacetime
D) As the result of friction

A) Black hole formation
B) Time dilation
C) Frame dragging
D) Quantum superposition