Light Pollution Ted Talk

What is the primary issue with light intended for streets and houses?

• It increases the beauty of cities at night.

• It is being wasted into the sky and universe.

• It makes the cities safer at night.

• It helps in reducing crime rates.

Which star was the speaker particularly fond of observing?

• Sirius

• Vega

• Betelgeuse

• Polaris

What is the effect of light pollution on the visibility of stars in urban areas?

• It makes more stars visible.

• It has no effect.

• It reduces the visibility of stars.

• It makes stars brighter.

How does light pollution affect dog whelks?

• It makes them more likely to stay under water with predators.

• It increases their population.

• It doesn't affect them.

• It makes them faster.

Tags

NGSS.MS-LS2-4

What is one health issue linked to light pollution?

• Obesity

• Improved vision

• Decreased appetite

• Better sleep quality

What hormone's production is disrupted by light pollution, affecting health?

• Insulin

• Adrenaline

• Serotonin

• Melatonin

How much money is wasted annually on light that goes into the universe?

• $1 billion

• $10 billion

• $3 billion

• $500 million

What is linked to light pollution besides health issues?

• Economic savings

• Enhanced animal habitats

• Improved plant growth

• Existential costs and loss of cosmic connection

What is the rate at which light pollution is increasing?

• Doubling every 10 years

• Staying the same

• Doubling every 35 years

• Halving every 50 years

What is a simple measure to reduce light pollution?

• Using brighter lights

• Leaving lights on all night

• Increasing the use of blue LED lights

• Using shielded lights pointing downwards

Tags

NGSS.MS-ESS3-3