Question

All of the following are reasons why coal is so widely used around the world except:

a) Resources are relatively easy to exploit
b) Coal needs little refining
c) Coal is easily transported
d) Coal has low energy density

Answer 1

Coal is widely used around the world due to its easy exploitation, minimal refining requirements, and easy transportation. However, its low energy density is one reason it is not widely used for certain purposes.

Step-by-step explanation:

The main reasons why coal is widely used around the world include:

1. Resources are relatively easy to exploit: Coal reserves are abundant in many countries, including the United States, and can be easily extracted through mining operations.
2. Coal needs little refining: Unlike oil and natural gas, coal can be used directly after mining without undergoing extensive refining processes.
3. Coal is easily transported: Coal can be transported by train, truck, or ship, making it accessible even in areas without direct access to coal mines.

One reason why coal is not widely used for certain purposes is because it has low energy density compared to other fossil fuels like oil and natural gas. This means that coal contains less energy per unit of weight or volume.