Answer:
A. regulation of the railroad industry
Answer:
A.
Explanation:
A child's temperament can be defined as the way a child reacts to the people around her. the personality traits that are included in a temperament are emotionality, sociability, etc. As per the studies of scientists about 20-60 percent of temperament is genetically borrowed.
<u>So, Willy and Bernice, a couple who are planning to have children will be more concerned about their temperaments because their children might possess their personality traits of being short-tempered</u>.
So, the correct answer is option A.
Acid Rain is the problem threatening Europe's forests, lakes, and rivers. Acid rain travels via the wind and the acid pollutants can travel through this said wind to multiple countries. It was a large problem in the 1970's and 80's.
