Which correctly relate dark matter and dark energy to the Big Bang theory? Select the two correct answers.(1 point)
A. Without dark energy, structures in the early universe would never have developed.
B.Dark energy is the source of 25 percent of the mass of the universe.
C.Because of dark matter, gravitational interactions cause galaxies to develop.
D.Through dark energy, the universe is expanding at a faster and faster rate.
A. Without dark energy, structures in the early universe would never have developed. and D. Through dark energy, the universe is expanding at a faster and faster rate.
To determine the correct answers, let's examine each option:
A. Without dark energy, structures in the early universe would never have developed.
Explanation: This option correctly relates dark energy to the Big Bang theory. Dark energy is believed to be responsible for the current accelerating expansion of the universe. It plays a crucial role in the development of structures in the early universe. As space expanded, dark energy gradually dominated, leading to the formation of galaxies and other cosmic structures.
B. Dark energy is the source of 25 percent of the mass of the universe.
Explanation: This option is incorrect. Dark energy does not contribute to the mass of the universe. In fact, it is referred to as "dark energy" precisely because it is a form of energy that does not behave like ordinary matter or contribute to gravitational interactions in the same way.
C. Because of dark matter, gravitational interactions cause galaxies to develop.
Explanation: This option correctly relates dark matter to the Big Bang theory. Dark matter is a hypothetical form of matter that does not interact with light or electromagnetism but exerts gravitational effects. It is believed to play a significant role in the formation and development of galaxies through its gravitational interactions.
D. Through dark energy, the universe is expanding at a faster and faster rate.
Explanation: This option is correct. Dark energy is responsible for the accelerated expansion of the universe. In the early years after the Big Bang, matter and radiation dominated the universe's expansion, but as it expanded and became less dense, dark energy gradually took over and caused the rate of expansion to accelerate.
Based on the explanations provided, the two correct options are:
A. Without dark energy, structures in the early universe would never have developed.
D. Through dark energy, the universe is expanding at a faster and faster rate.
The two correct answers are:
A. Without dark energy, structures in the early universe would never have developed.
D. Through dark energy, the universe is expanding at a faster and faster rate.