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Quiz about Light Pollution Enlightenment
Quiz about Light Pollution Enlightenment

Light Pollution Enlightenment Trivia Quiz


Light pollution is one of the most easily remedied pollutants, yet it plagues a large portion of the world. Learn more about it here.

A multiple-choice quiz by zebra101. Estimated time: 4 mins.
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Author
zebra101
Time
4 mins
Type
Multiple Choice
Quiz #
373,678
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
7 / 10
Plays
507
Awards
Top 20% Quiz
Last 3 plays: dee1304 (7/10), Guest 152 (2/10), Guest 212 (3/10).
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Question 1 of 10
1. What is light pollution? Hint


Question 2 of 10
2. Along with an excess of outdoor lighting fixtures, what causes the majority of light pollution? Hint


Question 3 of 10
3. Light pollution is what blocks people from viewing the starlit skies from cities.


Question 4 of 10
4. Many people use security lights to light their property through the night. What can people do to keep their houses safe and also to reduce light pollution? Hint


Question 5 of 10
5. The excess of nighttime light that comes with light pollution causes a disruption in our circadian rhythms. Which of the following best defines these rhythms? Hint


Question 6 of 10
6. Some studies carried out in the early twenty-first century have shown that there is a correlation between light pollution and which of these diseases? Hint


Question 7 of 10
7. Light pollution can cause sleep disorders.


Question 8 of 10
8. Animals also face many problems caused by light pollution. Which of the following is NOT one of them? Hint


Question 9 of 10
9. Sea turtles are one type of animal that is largely affected by light pollution. It affects their ability to find which of these essentials? Hint


Question 10 of 10
10. How does light pollution affect the behavior of migratory birds? Hint



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Most Recent Scores
Mar 21 2024 : dee1304: 7/10
Mar 08 2024 : Guest 152: 2/10
Mar 03 2024 : Guest 212: 3/10
Feb 12 2024 : Guest 41: 8/10
Feb 02 2024 : comark2000: 10/10
Jan 29 2024 : Guest 173: 1/10

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. What is light pollution?

Answer: excessive artificial light in the night sky

Light pollution can be seen in most developed cities. It is an orange haze of light over cities and is caused by the amount of artificial lights left on at night. These lights can be seen from space. It's more than just an eyesore, though. Light pollution has many negative affects on both humans and animals.
2. Along with an excess of outdoor lighting fixtures, what causes the majority of light pollution?

Answer: lights that are not contained

Light fixtures that do not have proper coverings, or are unshielded altogether, allow light to escape upwards when it should be focused down where it is actually used. Unshielded lights cause glare and let light go beyond where it is needed, like into the sky. If many light fixture designs were rethought, light pollution could be reduced.
3. Light pollution is what blocks people from viewing the starlit skies from cities.

Answer: True

Light pollution makes it nearly impossible to see stars in major cities. The farther away you go from cities and towns, the brighter the stars appear. In really dark places, like national parks and areas with a low population, the Milky Way galaxy can be seen best.
4. Many people use security lights to light their property through the night. What can people do to keep their houses safe and also to reduce light pollution?

Answer: use lights that turn on with a motion sensor

Security lights that turn on with a motion sensor still do the job of deterring trespassers and potential criminals while also reducing light pollution by not keeping the security lights on all night. Using these types of lights would also save energy, and money, from being wasted.
5. The excess of nighttime light that comes with light pollution causes a disruption in our circadian rhythms. Which of the following best defines these rhythms?

Answer: our body's 24-hour biological cycle

Circadian rhythms are a series of processes our bodies go through each day. Some of the things controlled by these rhythms include metabolism, hormones, and blood pressure. The circadian rhythms restart at night when it is dark. However, when it is not dark enough, such as when light pollution is present, some of the processes are disrupted, causing possible health issues.
6. Some studies carried out in the early twenty-first century have shown that there is a correlation between light pollution and which of these diseases?

Answer: breast cancer

There have been studies that show women who live in cities where it is possible to read outside at midnight are more likely to develop breast cancer than those who live where it is darker. Women who work the "graveyard" shift and are under lights throughout the night also have a higher chance of having breast cancer.

This may be linked to the disrupted circadian rhythms, especially the production of the hormone melatonin. This hormone, which is produced in darkness, helps to keep breast cancer from growing.

When it is not dark enough, the production of the hormone is reduced.
7. Light pollution can cause sleep disorders.

Answer: True

Sleep can also be affected by light pollution. Sleep disorders such as insomnia and sleep-phase syndrome can be caused by it. Insomnia is the inability to fall asleep. Sleep-phase syndrome is when people fall asleep late and have trouble waking up on time in the morning.
8. Animals also face many problems caused by light pollution. Which of the following is NOT one of them?

Answer: decreased amount of food

When there is an excess of light, it is harder for animals to hide from their predators. Many animals are also disorientated by lights and are drawn to them, like insects around a porch light. Some animals, like birds, are known to breed earlier than usual, as well.
9. Sea turtles are one type of animal that is largely affected by light pollution. It affects their ability to find which of these essentials?

Answer: nesting spots

Sea turtles are unable to lay their eggs if they do not find a beach that is dark enough for them. Even when they are able to lay their eggs, they are often drawn in by the lights of nearby cities where they are hit by cars. Usually, the light of the moon reflecting off the ocean leads them back home, but this does not happen because of light pollution.

Many species of sea turtles are endangered.
10. How does light pollution affect the behavior of migratory birds?

Answer: They are drawn into cities where they fly into buildings

Light pollution affects the behavior of migratory birds in a couple of ways. They start their migrations sooner, and so they mate sooner, too. They are also drawn into cities where many fly into buildings. This can cause the birds to injure themselves, or even to die.
Source: Author zebra101

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