Answer these questions: (3 to 8 paragraphs for each question
assignment instructions: prepare a 4-10-page essay answering the questions below
2. how much of the universe is estimated to be dark matter

The universe is comprised of nearly 27% of dark matter. These are dark in color and are not visible in the space like the other planets and stars. These are mainly constructed by the particles which are commonly known as the baryonic particles that are formed due to the accumulation of protons, neutrons as well as electrons. The dark matters are the substance that interconnects mostly by the force of gravity in association with some visible matters like the stars and planets. They form the majority of the mass of the universe.