Question

What is Dark Matter?​

Answer 1

Answer:

Dark matter can refer to any substance which interacts predominantly via gravity with visible matter (e.g., stars and planets). Hence in principle it need not be composed of a new type of fundamental particle but could, at least in part, be made up of standard baryonic matter, such as protons or neutrons

Explanation:

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Answer 2

Answer:

Dark matter is materials that cannot be seen directly. We know that dark matter exists because of the effects it has an object that can we observe directly.