1 If the predictions of a theory cannot be confirmed after many years of careful research, it is usually safe to conclude that: the theory must be valid
the theory is not accurate
the theory needs more research funds
the theory needs to be changed
2 Many stars do not emit much visible light.
True
False 3 The most complex information sequence found in the universe is contained in:

radio signals from space
the Encyclopedia Britannica
the memory banks of supercomputers
the DNA molecule 4 The data received from the Hubble Space Telescope:

have verified the Big Bang Theory
correspond with predictions of the Big Bang Theory
are not related to the Big Bang Theory
contradict the Big Bang Theory