1. Based on the passage, how frequently do residents of the northern hemisphere see the aurora borealis?
(A) Whenever the solar winds combine with atoms in the atmosphere
Correct, the passage explains the mechanism in para-2 and we know that chances are quite high in countries in northern hemisphere so this option looks quite good for now.
(B) Every hour
Not mentioned anywhere in the passage
(C) When the sun passes over the magnetosphere
Not mentioned anywhere in the passage
(D) Once a month
Not mentioned anywhere in the passage
(E) Only when they are in Canada
The passage mentions that chances are high in countries surrounding the Antarctic circle which is not limited to the Canada only
2. Which of the following statements about the northern lights can be inferred from the passage?
(A) It is fairly common for people all over the world to see the northern lights.
Incorrect, the passage clearly says
"Although many people have seen the lights, your chances of stumbling across an occurrence are slim unless you live in the northern hemisphere. Residents of Alaska, Canada, and areas surrounding the Antarctic circle see the lights more often due to their positioning near theaurora oval, which is centered on the magnetic pole."(B) The northern lights can only be seen in a very remote area that is hard to get to.
Incorrect, the passage says that chances are slim in other areas which doesn't mean that a remote area is the only place to see.
(C) The northern lights change color based on the weather in Antarctica.
Not mentioned anywhere in the passage.
(D) The popularity of the northern lights has been decreasing in recent years.
It has been increasing so this option seems opposite of the fact given in the passage.
(E) The northern lights are seen as a tourist attraction.
Correct, based on line-1 of para-1
"Each year, people travel hundreds of miles to catch a glimpse of the ever elusive, yet magical aurora borealis, also called the northern lights.", we can infer this option.
3. Different colors are created in the sky depending on
(A) whether there are electrical fields in the atmosphere.
Not mentioned anywhere in the passage.
(B) the speed the solar wind is traveling.
Not mentioned anywhere in the passage.
(C) the distance from the north pole.
Not mentioned anywhere in the passage.
(D) the combination of altitude and atmospheric elements.
Correct, we can refer to the line
"Depending on the altitude and which atom is interacted with, different colors are created."(E) the haphazard nature of the aurora borealis.
Not mentioned anywhere in the passage.