Which was the main issue that divided presidential candidates of the democratic and republican parties in the late nineteenth century?
going to war
supreme court rulings
lowering or raising tariffs
newspaper coverage of scandals

The main issue that divided presidential candidates of the Democratic and Republican Parties in the late nineteenth century was about lowering or raising tariffs.

The Democratic candidates defended a progressive tax, and did not oppose the tax increase to finance the government.

On the other hand, Republicans favored a "fixed tax" (same tax rate regardless of income), and opposed the increase in taxes.

A. Animals break down food molecules to obtain energy

B. The remains of the producers are broken down by decomposers.

C. The remains of consumers are broken down by soil decomposers.

Explanation:

Carbon is an important ingredient of the bodily composition of the living organisms. The carbon dioxide released from the organism during the process of cellular respiration. In this the energy from the food molecules are broken down to produce energy in the form of ATP and oxygen. This process results in the libertion of carbon dioxide.

Also the decomposition of the plant and animal dead material by the soil bacteria deposit carbon dioxide in the soil.