Write an informative essay that explains a natural phenomenon such as the Pitch Lake in Trinidad or the aurora borealis.

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U realise that the point number is 15 not 30?

But here is an answer!

Every storm cloud has a silver lining; in the case of space weather, that lining is the aurora borealis, more commonly known as the Northern Lights. (Viewers in the southern hemisphere are treated to an equivalent version called the aurora australis, or Southern Lights.) The phenomenon is best observed on a clear, cold night around the spring or autumn equinox. Find an open patch of sky well away from the interfering lights of the city, and you may catch a glimpse of the spectacle: curtains of pale light-green and blue, sometimes red or violet-shimmering above the northern horizon for minutes or even hours at a time.

Auroras occur when electrons and protons from the Sun strike gas molecules in Earth's upper atmosphere. As the solar particles encounter Earth's magnetosphere, they are drawn along the magnetic field lines and funneled toward the North and South poles. There, high above Earth's surface, they collide with atmospheric molecules, energizing them and causing them to glow. The colors that result depend on the gas molecules involved. The brightest and most common auroral color, a brilliant yellow-green, is produced by the glow of oxygen molecules roughly 60 miles above Earth. Ionized nitrogen molecules emit blue light when hit by solar particles; neutral nitrogen molecules emit a purplish-red light. All-red auroras are rare; they are caused by the glow of oxygen atoms 200 miles above Earth. The size and intensity of the aurora varies from night to night, and moment to moment, depending on the strength of the solar wind. On April 6, 2001, a large geomagnetic storm produced an aurora that was seen as far south as Alabama. The scientific understanding of auroras has advanced enormously in recent years with the launch of satellites designed expressly to study them. Instruments aboard NASA's Polar spacecraft monitor ultraviolet radiation and chemical changes in the upper atmosphere, effectively offering an up-to-the-minute report on the shape and intensity of the aurora. The Imager for Magnetopause-to-Aurora Exploration (IMAGE) spacecraft, launched in 2000, studies Earth's magnetosphere in astounding detail. It can watch auroras evolve over a period of hours, and can even see auroras flickering in the far-ultraviolet wavelength. Recently and for the first time, scientists observed a phenomenon known as "black auroras." A black aurora isn't really an aurora at all: it's the dark, empty space within a colorful aurora where one would otherwise expect auroral activity to be visible. Nonetheless, black auroras exhibit distinct patterns, including curls, rings and writhing black patches. Nowadays, scientists often can forecast a spectacular aurora hours or days in advance, so it's worth checking space weather websites (See Related Links) with some regularity.

In the 1970s, with the aid of the Hubble Space Telescope, it became apparent that Earth is not the only planet with auroras. On both Jupiter and Saturn, auroras appear pink due to the large amounts of hydrogen in those planets' atmospheres. Jupiter's aurora has proved to be particularly intriguing. On Earth, the aurora is powered by a barrage of charged particles from the Sun. On Jupiter, auroras are generated instead by volcanic particles from the Jovian moon Io. These particles become ionized, expand and then are trapped in Jupiter's tremendous magnetic field. Rotating once every ten hours, Jupiter generates auroras many times more powerful than those on Earth. However, Earth's auroras remain unique in one respect: they are (at times, anyway) green. Indeed, Earth is the only known planet with green auroras, because it is the only known planet with an oxygen-rich atmosphere. As scientists look deeper into the universe for signs of other, potentially habitable worlds, auroras are one clue they examine. If a distant, unknown planet has shimmering green auroras, that's a strong indication that its atmosphere is rich in oxygen, perhaps enough to support life. Whether that life is capable of appreciating the auroras—well, that's another issue.

I got this from someone else so credits go to them not me

:)

Answer:

Every storm cloud has a silver lining; in the case of space weather, that lining is the aurora borealis, more commonly known as the Northern Lights. (Viewers in the southern hemisphere are treated to an equivalent version called the aurora australis, or Southern Lights.) The phenomenon is best observed on a clear, cold night around the spring or autumn equinox. Find an open patch of sky well away from the interfering lights of the city, and you may catch a glimpse of the spectacle: curtains of pale light-green and blue, sometimes red or violet-shimmering above the northern horizon for minutes or even hours at a time.

Auroras occur when electrons and protons from the Sun strike gas molecules in Earth's upper atmosphere. As the solar particles encounter Earth's magnetosphere, they are drawn along the magnetic field lines and funneled toward the North and South poles. There, high above Earth's surface, they collide with atmospheric molecules, energizing them and causing them to glow. The colors that result depend on the gas molecules involved. The brightest and most common auroral color, a brilliant yellow-green, is produced by the glow of oxygen molecules roughly 60 miles above Earth. Ionized nitrogen molecules emit blue light when hit by solar particles; neutral nitrogen molecules emit a purplish-red light. All-red auroras are rare; they are caused by the glow of oxygen atoms 200 miles above Earth. The size and intensity of the aurora varies from night to night, and moment to moment, depending on the strength of the solar wind. On April 6, 2001, a large geomagnetic storm produced an aurora that was seen as far south as Alabama. The scientific understanding of auroras has advanced enormously in recent years with the launch of satellites designed expressly to study them. Instruments aboard NASA's Polar spacecraft monitor ultraviolet radiation and chemical changes in the upper atmosphere, effectively offering an up-to-the-minute report on the shape and intensity of the aurora. The Imager for Magnetopause-to-Aurora Exploration (IMAGE) spacecraft, launched in 2000, studies Earth's magnetosphere in astounding detail. It can watch auroras evolve over a period of hours, and can even see auroras flickering in the far-ultraviolet wavelength. Recently and for the first time, scientists observed a phenomenon known as "black auroras." A black aurora isn't really an aurora at all: it's the dark, empty space within a colorful aurora where one would otherwise expect auroral activity to be visible. Nonetheless, black auroras exhibit distinct patterns, including curls, rings and writhing black patches. Nowadays, scientists often can forecast a spectacular aurora hours or days in advance, so it's worth checking space weather websites (See Related Links) with some regularity.

In the 1970s, with the aid of the Hubble Space Telescope, it became apparent that Earth is not the only planet with auroras. On both Jupiter and Saturn, auroras appear pink due to the large amounts of hydrogen in those planets' atmospheres. Jupiter's aurora has proved to be particularly intriguing. On Earth, the aurora is powered by a barrage of charged particles from the Sun. On Jupiter, auroras are generated instead by volcanic particles from the Jovian moon Io. These particles become ionized, expand and then are trapped in Jupiter's tremendous magnetic field. Rotating once every ten hours, Jupiter generates auroras many times more powerful than those on Earth. However, Earth's auroras remain unique in one respect: they are (at times, anyway) green. Indeed, Earth is the only known planet with green auroras, because it is the only known planet with an oxygen-rich atmosphere. As scientists look deeper into the universe for signs of other, potentially habitable worlds, auroras are one clue they examine. If a distant, unknown planet has shimmering green auroras, that's a strong indication that its atmosphere is rich in oxygen, perhaps enough to support life. Whether that life is capable of appreciating the auroras—well, that's another issue.

Explanation:

NOT mine credit: 26sterave

During the period of isolationism, why were the Chinese successful in imposing new rules governing trade with foreigners?

Plz help me with this and can someone talk with me

• Do you think the final version of the US Constitution created a political system that gjves too much, too little or just enough power to the
central government?
• Do you think the Great Compromise created a functional and fair representative congress?

What were the Conquistadors interested in finding?

World History A
Which statement best describes how clans developed into complex villages?
O Hunter-gatherers lived a nomadic lifestyle.
Farming allowed clans to hunt for surplus food.
O People developed shared beliefs through trade with other villages.
O Growing villages began to develop organization within the villages.

Which characteristic did Chandragupta Maurya and Aśoka have in common?

They both converted to Buddhism.
They both formed alliances with the Greeks.
They both embraced nonviolence later in life.
They both carved edicts into rocks and pillars.

Which of the following was NOT an example of how African-Americans influenced the cultures of the Americas? *
Food
Music
Language
Architecture

What is social capital?
Question 18 options:

campaign contributions made by community organizations

community networks that motivate political participation

the funds that interest groups raise during election campaigns

an individual’s belief in his or her ability to competently engage in personal interactions with other people

Residents of the Indus valley were so isolated by geography that they never ever
saw other civilizations.
A.True
B.False

what describes the ancient empire of Ghana?

This nominating method only allows participation from members of a particular political party.
0closed primary
O petition
O convention
O caucus

African Americans fought mostly for which side in the American Revolution?
A. They only fought for the British.
B. They fought for both sides.
C. They remained neutral.
D. They only fought for the Patriots.

Help me..............

Describe two ways technology provided evidence to help confirm the location of the impact crater that produced the iridium anomaly

With regard to age and social class, who were the first settlers?

What was the purpose of the Underground Railroad?
A) to mine for gold more easily
B) to help slaves escape to freedom
C) to connect the North with the South
D) to move people around cities quickly

Religion: Compare the books of Joshua,Judges,and Ruth.How do they address the same historical events in different ways?

Spanish settlers tended to build towns
a.
in areas with fertile soil, to support farming.
b.
with some regard for Native American settlements in the region.
c.
around the missions and presidios.
d.
in mountainous regions, offering protection from Native American attacks.


NEED ANSWER QUICK PLS

How did the British treat the First Nations according to the treaty of utrecht

5. What type of media is Philippine Daily Inquirer newspaper?
dai​

How did the Ming dynasty use bureaucracies and the use of military to gain centralized control?

Which of the following best addresses a counterargument? need help :(

The ________ parallel the coast from Grays Harbor to the Columbia River in the southwest. Cascade Mountains
The Willapa Hills
The Puget Sound Lowland
The Blue Mountains

DESCRIBE two reasons the Western Roman empire fell

Describe the pilgrims pact with Native Americans

Parliament asked the rulers of the Netherlands to lead England because
a.
Mary had a stronger claim to the throne than James II.
b.
William of Orange depended on Mary for his power.
c.
James II wanted to change England back to a Catholic nation.
d.
James II wanted to disband Parliament and rule England alone.

Explain how rivers enabled the early Chinese to give up their nomadic existence.

Please help me ;cc im very dumb

How did congressman Butler attempt to protect the voting rights of African Americans?

10 points
When one occupying nation must oversee a colony or territory nation.
O protectionism
O expansionism
O isolationism
militarism