The answer is <span>a. became an apprentice to a master craftsman.</span>
You are right the U.S is in the Northern Hemisphere and the Western Hemisphere.
Air pollution is when unwanted chemicals and poisonous substances are added to air, making it harmful to most organisms such as humans, plants, animals, etc... and even the atmosphere.
By different human activities, we add a lot
of smoke and dust into the air.
The biggest cause of air pollution is the use of fossil fuels.
These are mainly coal, petrol/diesel, and natural gas.
For example, if you have been in the car before and are stuck in traffic,
you will see fumes coming out of many vehicles.
These fumes are poisonous gasses that make the air polluted.
Answer:
What characteristics or qualities make a person a hero? Is there a hero gene? According to one recent study, the answer might rest in what type of heroism we are addressing.
Researchers have found that people who had engaged in one-time acts of bravery (like rushing into a burning building or rescuing someone from the path of an oncoming train) are not necessarily that much different from control groups of non-heroes.
By contrast, people who engage in lifelong heroism (such as professional nurses who regularly comfort the sick and dying) do share a number of important personality traits such as empathy, nurturance, and a need to live by a moral code.
Explanation: