Railroad, barbed wire and the modern water pump
Answer:
technical skills
Explanation:
Based on the information provided within the question it can be said that in this scenario Harry spends time on his technical skills. This refers to the individuals's ability or knowledge needed in order to perform specific tasks. These types of skills are usually needed in areas such as mechanics, information technology, etc. Where having one skill allows you to perform one task.
Answer:
"Save skilled human resources
For the utilization of natural resources"
