How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.(1 point)

Question

Responses

The percentage of unknown material has grown in scientists' estimates since the 1970s.
The percentage of unknown material has grown in scientists' estimates since the 1970s.

The percentage of dark energy has shrunk in scientists' estimates.
The percentage of dark energy has shrunk in scientists' estimates.

The percentage of dark matter has shrunk in scientists' estimates since the 1980s.
The percentage of dark matter has shrunk in scientists' estimates since the 1980s.

The percentage of ordinary matter has grown in scientists' estimates.

Answer 1

The correct answers are:

1. The percentage of unknown material has grown in scientists' estimates since the 1970s.
2. The percentage of dark energy has shrunk in scientists' estimates.

Scientific understanding has evolved significantly over time, particularly regarding the composition of the universe, with increasing recognition of dark energy and dark matter as major components, alongside ordinary matter.