How has scientific understanding of the composition of the universe evolved over time? Select the two correct answers. (1 mark) A. The percentage of ordinary matter has increased in scientists’ estimates.
B. The percentage of dark matter has been decreasing in scientists’ estimates since the 1980s.
C.The percentage of dark energy has decreased in scientists’ estimates.
D. The percentage of unknown material has increased in scientists’ estimates since the 1970s. Here are all the answers 🙂
1) How has scientific understanding of the composition of the universe changed over time? Choose the two correct answers.
The percentage of unknown material has increased in scientists’ estimates since the 1970s.
The percentage of dark matter has been declining in scientists’ estimates since the 1980s.
2) What is the evidence for the existence of dark energy?
Supernovae receding at an accelerating rate.
3) How did dark matter affect the development of structures in the early universe?
He sowed the development of galaxies. the moon is correct THE MOON IS CORRECT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!I!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!! moon is 100% correct, thank you moon. Does anyone have the answers??? :(( Thank you son my boy. thank you moon <3