Answer:
recent advances in transportation allowing people to travel greater distances to work
Explanation:
In a study, the measurable conditions, events, characteristics, or behaviors that can be controlled or observed are called: variables.
<h3>What is a study?</h3>
A study can be defined as a process or technique through which a scientist (researcher) observes and measures the effect of a risk factors, diagnostic test, or treatments on a population.
<h3>What is a variable?</h3>
In Science, a variable can be defined as the measurable conditions, events, characteristics, or behaviors that a scientist (researcher) can control or observe when performing a study.
In conclusion, the measurable conditions, events, characteristics, or behaviors of a living or non-living thing that can be controlled or observed in a study are typically called variables.
Read more on variables here: brainly.com/question/523303
Pacific ocean,the west coast and Alaska are next to the pacifi,the largest body if water in the world
Atlantic ocean, the Atlantic is on the edge of the U.S east coast
gulf of Mexico, the gulf of Mexico is in the midwest region of the U.S and is part of the Atlantic ocean.