Q4. Consider the following statements about Light pollution:
1. Light pollution, also known as photo-pollution, is the presence of anthropogenic light in the night environment.
2. Its negative impacts include increasing energy consumption and disrupting the ecosystem and wildlife.
3. Frequent use of LED technology increases light pollution
Which of the above statements are correct?
Q4. Consider the following statements about Light pollution:
1. Light pollution, also known as photo-pollution, is the presence of anthropogenic light in the night environment.
2. Its negative impacts include increasing energy consumption and disrupting the ecosystem and wildlife.
3. Frequent use of LED technology increases light pollution
Which of the above statements are correct?
The correct option is D d) All of the above
Light Pollution
1. Light pollution, also known as photo pollution, is the presence of anthropogenic light in the night environment.
2. It is exacerbated by excessive, misdirected or obtrusive uses of light, but even carefully used light fundamentally alters natural conditions.
3. As a major side-effect of urbanization, it is blamed for compromising health, disrupting ecosystems and spoiling aesthetic environments
4. Effects of Light Pollution.
5. For three billion years, life on Earth existed in a rhythm of light and dark that was created solely by the illumination of the Sun, Moon and stars.
6. Now, artificial lights overpower the darkness and our cities glow at night, disrupting the natural day-night pattern and shifting the delicate balance of our environment.
7. The negative effects of the loss of this inspirational natural resource might seem intangible. But a growing body of evidence links the brightening night sky directly to measurable negative impacts including
- Increasing energy consumption
- Disrupting the ecosystem and wildlife
- Harming human health
- Effecting crime and safety
Light pollution threatens Chile’s dark skies
- Frequent use of LED technology increases light pollution and threatens the work of observatories in the Atacama desert
- It seems nothing can escape the inexorable spread of light pollution – not even the giant telescopes probing the heavens above northern Chile, a region whose pristine dark skies, long considered a paradise for astronomers, are under increasing threat.
- The Atacama desert, 1,200 km north of the capital Santiago, provides ideal conditions where astronomers study the stars in darkness so profound they appear like diamonds on velvet.
- Scientists estimate that by 2020, Chile – a critically important country for optical and radio astronomy – will host 70% of the globe’s astronomical infrastructure.
- But the ever-expanding use of cheap light-emitting diode (LED) lighting in the booming South American country is starting to concern astronomers desperately trying to safeguard some of the world’s darkest skies.
d) All of the above
Light Pollution
1. Light pollution, also known as photo pollution, is the presence of anthropogenic light in the night environment.
2. It is exacerbated by excessive, misdirected or obtrusive uses of light, but even carefully used light fundamentally alters natural conditions.
3. As a major side-effect of urbanization, it is blamed for compromising health, disrupting ecosystems and spoiling aesthetic environments
4. Effects of Light Pollution.
5. For three billion years, life on Earth existed in a rhythm of light and dark that was created solely by the illumination of the Sun, Moon and stars.
6. Now, artificial lights overpower the darkness and our cities glow at night, disrupting the natural day-night pattern and shifting the delicate balance of our environment.
7. The negative effects of the loss of this inspirational natural resource might seem intangible. But a growing body of evidence links the brightening night sky directly to measurable negative impacts including
- Increasing energy consumption
- Disrupting the ecosystem and wildlife
- Harming human health
- Effecting crime and safety
Light pollution threatens Chile’s dark skies
- Frequent use of LED technology increases light pollution and threatens the work of observatories in the Atacama desert
- It seems nothing can escape the inexorable spread of light pollution – not even the giant telescopes probing the heavens above northern Chile, a region whose pristine dark skies, long considered a paradise for astronomers, are under increasing threat.
- The Atacama desert, 1,200 km north of the capital Santiago, provides ideal conditions where astronomers study the stars in darkness so profound they appear like diamonds on velvet.
- Scientists estimate that by 2020, Chile – a critically important country for optical and radio astronomy – will host 70% of the globe’s astronomical infrastructure.
- But the ever-expanding use of cheap light-emitting diode (LED) lighting in the booming South American country is starting to concern astronomers desperately trying to safeguard some of the world’s darkest skies.
