Answer: Dark matter is a substance that makes up a large portion of the mass of galaxies and galaxy clusters. It plays a role in how galaxies are organized on a large scale.
On the other hand, dark energy is a mysterious force that is causing the universe to expand at an accelerated rate. It is like an "anti-gravity" force that pushes cosmic objects apart instead of pulling them together like gravity does.
In summary, dark matter affects how galaxies are structured, while dark energy is responsible for the expansion of the universe.
Step-by-step explanation: