Question

which statements explain current theories about dark energy and dark matter? check all that apply. space that appears empty actually contains dark energy and dark matter. dark matter does not emit electromagnetic radiation. scientists believe dark energy will cause the universe to collapse inward to a single point. scientists theorize that dark energy is causing the expansion of the universe to accelerate. dark matter includes all of the dust, ice, and debris that scientists observe in black holes.

Explanation:

• Space that appears empty actually contains dark energy and dark matter: Current cosmological models suggest that most of the universe's mass - energy is in the form of dark energy and dark matter, which are present even in regions that seem empty.
• Dark matter does not emit electromagnetic radiation: Dark matter is called "dark" precisely because it does not interact with electromagnetic radiation (such as light), which is how we detect most matter in the universe.
• Scientists theorize that dark energy is causing the expansion of the universe to accelerate: Observations of distant supernovae and other cosmological data support the idea that dark energy is responsible for the accelerated expansion of the universe.

• Scientists believe dark energy will cause the universe to collapse inward to a single point: This is incorrect. Dark energy is associated with the expansion of the universe, not its collapse. The theory of the Big Crunch (universe collapse) is not related to dark energy in the current understanding.
• Dark matter includes all of the dust, ice, and debris that scientists observe in black holes: Dark matter is a different kind of matter altogether. The dust, ice, and debris in black - hole regions are normal (baryonic) matter, while dark matter is non - baryonic and has different properties.

Answer:

• Space that appears empty actually contains dark energy and dark matter.
• Dark matter does not emit electromagnetic radiation.
• Scientists theorize that dark energy is causing the expansion of the universe to accelerate.