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

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

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

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

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

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

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

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

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