It is true that the production function becomes steeper as the number of hours spent fishing increases.
Production function is what relate physical output of a production process to physical inputs or factors of production.
It should be noted that at higher levels of production, firms require fewer inputs to increase production by the same amount.
Hence, It is true that the production function becomes steeper as the number of hours spent fishing increases.
Learn more about production function here : https://brainly.com/question/25180725