What is true about main sequence stars? A. They are older than white dwarfs.
B. They are older than red giants.
C. They are all newly born stars.
D. They are middle-aged stars.

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Graphs you see question 5 options: the change in data over time the relationship between different dependent variables the relationship between the independent variable and the dependent variable/s the relationship between different independent variables

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent