Chapter 34, Problem 8RAT

To determine

The correct option for the statement “Dark matter is”.

Answer to Problem 8RAT

The correct option for the statement “Dark matter is” is option (a).

Explanation of Solution

Around $85\%$ mass of our universe is made up of a material that cannot be observed directly by the scientists and is known as dark matter. The break up for this composition is $5\%$ ordinary matter and energy, $27\%$ dark matter, and $68\%$ of a form of energy known as Dark energy.

Dark matter is named dark because of its ability to not react with electromagnetic radiations, which means neither it can consume light, nor it can transmit light and that’s why it is hard to detect.

Conclusion:

Therefore, the correct option for the statement “Dark matter is” is option (a).