Answer:
Step-by-step explanation:
Dark Matter is called "dark" because it does not interact with electromagnetic radiation, such as light. It does not emit, absorb, or reflect light, making it invisible or "dark" to traditional detection methods. Dark Matter does not directly interact with photons, which is why it cannot be observed through electromagnetic radiation.
The term "matter" refers to Dark Matter's classification as a type of substance that contributes to the mass and gravitational effects in the universe. Matter, in general, refers to any material substance that occupies space and has mass. While Dark Matter does not interact with light, it still has gravitational effects, such as influencing the motions of galaxies and galaxy clusters. It behaves like matter in terms of its gravitational interactions with other objects.
The name "Dark Matter" is used to describe this hypothetical form of matter because it is not visible or detectable through conventional means, but its presence can be inferred through its gravitational effects on visible matter and the structure of the universe. Scientists are still working to understand the nature and composition of Dark Matter, as it remains a fascinating and mysterious component of the cosmos.