I believe, I mean Billy believes in gradualism~
B. Gene. Piebalding is caused by mutant copies of genes.
These are some ways how scientists and engineers develop, use and refine models.
1. Imagine. They have to know what exactly trying to model. They have to imagine and brainstorm what are the things to be considered.
2. Reason. Next, they need to answer the questions brought from their brainstorming. They need to be able to reason out.
3. Calculate and Predict. Once they know it, that's the time they can start modelling and calculate - and predict.
Answer:
A
Explanation:
The supply of labor decreases because of a decrease in the after-tax wage rate this decreases a labor decreases the potential output of an economy known as GDP
