Question

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

A.The percentage of ordinary matter has grown in scientists' estimates.
B.The percentage of dark matter has shrunk in scientists' estimates since the 1980s.
C.The percentage of dark energy has shrunk in scientists' estimates.
D.The percentage of unknown material has grown in scientists' estimates since the 1970s.

Answers

Hay hay
Does anyone have the answers??? :((
moon
Here's all the answers :)
1)How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.
The percentage of unknown material has grown in scientists' estimates since the 1970s.
The percentage of dark matter has shrunk in scientists' estimates since the 1980s.
2) Which is evidence for the existence of dark energy?
Supernovae that are moving away at an accelerating rate.
3)How did dark matter affect the development of structures in the early universe?
It seeded the development of galaxies.
Max
moon is correct
andrew
MOON IS CORRECT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!i!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Kuroyukihime
moon is 100% correct, thanks moon.
Bob Joe's Grandma fell on stairs.
Thank you sonny boy.
nova lynn
thank you moon <3
Nobody
1. How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.
The percentage of unknown material has grown in scientists' estimates since the 1970s.
The percentage of dark matter has shrunk in scientists' estimates since the 1980s.
2. Which is evidence for the existence of dark energy?
Supernovae that are moving away at an accelerating rate.
3. How did dark matter affect the development of structures in the early universe?
It seeded the development of galaxies
100% credit goes to moon
Medu
yep they right

Related Questions