How do scientists know that dark matter exists? a. clusters that cannibalize each other b. nuclear bulges c. redshifts d. gravitational lensing.

At the end of your presentation, the main points should be a summarized c. handed to your teacher b. written on the board d. restated by the audience select the best answer from the choices provided mark this and retum next submit

Type the correct answer in each box. use = 3.14 and if necessary, round your answers to the nearest hundredth. the area of the largest cross section of a sphere and the circumference of the sphere are in the ratio 4: 1. cm. the area of the largest cross section is about the radius of the sphere is cm. the circumference of the sphere is about cm2. the volume of the sphere is about cm?

What was the effects of the mass demonstrations of strikes that had immediately followed the economic collapse beginning in 1893?