Question

Which of the following are characteristics of dark matter? Select the THREE correct responses(1 point)%0D%0AResponses%0D%0A%0D%0Ahas been directly observed%0D%0Ahas been directly observed%0D%0A%0D%0Adoes not interact with baryonic matter%0D%0Adoes not interact with baryonic matter%0D%0A%0D%0Adoes n0t interact with electromagnetic radiation%0D%0Adoes n0t interact with electromagnetic radiation%0D%0A%0D%0Ahas not been directly observed

Answer 1

The correct characteristics of dark matter are:

1. Does not interact with baryonic matter - Dark matter does not interact in the same way as normal matter, which is composed of protons, neutrons, and electrons.

2. Does not interact with electromagnetic radiation - Dark matter does not emit, absorb, or reflect light, which is why it is "dark" and cannot be seen directly.

3. Has not been directly observed - While dark matter's existence is inferred from gravitational effects, it has not been observed directly.

The first response (has been directly observed) is incorrect, so it should not be selected.