In the 1930's what caused canada to respond by raising its lax on goods imported from the united states

What are that three unifying characteristics of chordates

How do you imagine life would be without the invention of the typewriter? would computers have been invented?

Which of the following are details about the compromise of 1877? election results in a couple of states were in dispute and too close to call. samuel tilden would be given the win in exchange for the removal of federal troops. the presidential election was close between rutherford hayes and ulysses grant. it was agreed troops would leave the south in exchange for a hayes victory.