GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The theory that the universe is expanding is supported by the
A
blue shift of light from distant galaxies
B
existence of cosmic background radiation
C
nuclear fusion occurring in the Sun
D
radioactive decay occurring in the Sun
Explanation: 

Detailed explanation-1: -The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background", or CMB.

Detailed explanation-2: -One of the strongest pieces of evidence that supports the Big Bang model is the presence of a Cosmic Microwave Background Radiation, or CMB, observed throughout the Universe.

Detailed explanation-3: -CMB is landmark evidence of the Big Bang theory for the origin of the universe.

Detailed explanation-4: -The discovery of the cosmic microwave background radiation led most astronomers to accept the Big Bang theory.

There is 1 question to complete.