He's increased his powers of scientific observation. His observation is empirical evidence. Empiricism relies on observation and experimentation.
In Africa, why was trade so profitable for those living along trade routes?
Because there were customers for what they had to sell
Romans believed that the gods controlled their daily lives. Therefore, they spent a huge chunk of their day worshiping the gods. They expected them to bless and protect them throughout the day. They believed their gods were all apart of a family and people told stories and myths about them.
Unemployment and underemployment
The correct answer is letter B
Productivity is the relationship between the amount of what is produced in relation to the inputs used or the amount of time invested in the process.
It is the result of what is productive, that is, what is produced, what is profitable. It is the relationship between the means, resources used and the final production. It is the result of the ability to produce, to generate a product, the result of work, associated with the technique and the capital employed.