It prevented government from interfering in religion
C. was the donkey of elephant symbol used in the cartoon
D. The Kansas-Nebraska Act states that slaves were only allowed in the states below a certain point. And that the number of slave states and free states must remain equal.
Having no context and never having been to Australia, I would assume that there is a lack of opportunities for proper "brick and mortar" based schools for some areas of Australia.
Again, no context and no first hand knowledge of the continent...so, take it as you will.
The strong agriculture and trading affected china because under the song, the amount of land increased and they traded with china