Downstream activities, such as oil refining, add value to a product but
also add to the what?

In which country did miguel hidalgo led the revolution against spain?

June 19 is often a holiday in texas. it is emancipation day. what important event happened on emancipation day? a) it marks the end of slavery in texas. b) it marks end of the texas revolution. c) it marks the day texas became a state. d) it marks the last battle of the texas revolution.

Jane determines x = 4 and y = 1 is the solution to the following system of equations.