Question

Match the component of the universe with the percentage of its contribution to the composition of the universe.

1. Ordinary matter
2. Dark matter
3. Dark energy
a. About 5%.
b. About 27%.
c. About 68%.

Answer 1

Ordinary matter contributes about 5%, dark matter about 27%, and dark energy about 68% to the universe's composition.

Step-by-step explanation:

To match the components of the universe with the percentage of their contribution to the composition of the universe:

• Ordinary matter - About 5%
• Dark matter - About 27%
• Dark energy - About 68%

Ordinary matter, making up around 5% of the universe's mass and energy, consists of elements like hydrogen and helium. Dark matter, which has yet to be directly detected in laboratories, adds approximately 27% to the critical density of the universe. Meanwhile, dark energy contributes to about 68% of the critical density, influencing the universe's expansion and structure.