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Select the correct answers from the list.(1 point)

Comparing cooling temperature changes at different stages of the universe's life provides evidence of
. Measuring the universe's ratio of hydrogen and helium provides evidence that these elements were

3 answers

Based on the statements provided, the correct answers would be:

  1. Comparing cooling temperature changes at different stages of the universe's life provides evidence of the Big Bang theory.

  2. Measuring the universe's ratio of hydrogen and helium provides evidence that these elements were formed during Big Bang nucleosynthesis.

These answers relate to key concepts in cosmology that explain the early universe and the formation of the lightest elements.

Which statements accurately differentiate between dark matter and dark energy? Select the two correct answers.(1 point)
Responses

Dark matter is black, while dark energy cannot be seen.
Dark matter is black, while dark energy cannot be seen.

There is much more dark matter in the universe, by mass.
There is much more dark matter in the universe, by mass.

There is much more dark energy in the universe, by mass.
There is much more dark energy in the universe, by mass.

Dark energy is the cause of the acceleration of the universe, while dark matter is the cause of the formation of structures.
Dark energy is the cause of the acceleration of the universe, while dark matter is the cause of the formation of structures.

Dark matter is the cause of the acceleration of the universe, while dark energy is the cause of the formation of structures.

The two correct statements that accurately differentiate between dark matter and dark energy are:

  1. There is much more dark energy in the universe, by mass. (This statement is misleading; it should state that dark energy comprises a larger percentage of the universe's energy content, but it is not 'mass' in the traditional sense, as dark energy does not have mass. So instead, it could be stated as the universe is primarily composed of dark energy.)

  2. Dark energy is the cause of the acceleration of the universe, while dark matter is the cause of the formation of structures.

Therefore, pick the second statement as the most accurate differentiation between dark matter and dark energy based on their roles in the universe.