GENERAL KNOWLEDGE

Previous
Next

GK

BIG BANG THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The composition of stars is considered to be supporting evidence for the Big Bang Theory about the formation of the universe. ​What are the two most common elements found in stars, and how does stellar composition support the inflation model? (Select Two Answers)​Note:Think about which elements formed first after the Big Bang event. Also, are these elements found in stars today?
A
Stars formed when gravitational forces converted matter into solar energy.
B
The main elements in stars are carbon (about 22%) and oxygen (about 76%).
C
The main elements in stars are hydrogen (about 73%) and helium (about 25%).
D
Hydrogen was the first atom to form after the Big Bang followed later by helium.
Explanation: 

Detailed explanation-1: -The main elements in stars are carbon (about 22%) and oxygen (about 76%). The main elements in stars are hydrogen (about 73%) and helium (about 25%). Hydrogen was the first atom to form after the Big Bang followed later by helium.

Detailed explanation-2: -Three key pieces of observational evidence lend support to the Big Bang theory: the measured abundances of elements, the observed expansion of space, and the discovery of the cosmic microwave background (CMB). The CMB refers to the uniform distribution of radiation that pervades the entire universe.

Detailed explanation-3: -Answer: The two key pieces of evidence that support the Big Bang theory are the cosmic background radiation and the observed helium content of the universe.

There is 1 question to complete.
Previous
Next