What is the letter pattern that represents seafloor spreading

Explain how a convection current in the earth is formed.

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment