These products made from oil and gas became an important part of
Texas' economy.
A fossil fuels
B. oil derricks
C. petrochemicals
D. internal combustion engines

c it says nothing about connecting those 2 seas.

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.

b) the confederacy had to pay all union war expenses.

that is probably something for you to answer