Jellyfish and Environmental Science Concepts

What causes some jellyfish, like the Crystal Jelly, to glow in the dark?

• They absorb light from the sun.

• They contain fluorescent proteins.

• They generate electricity.

• They reflect light from the moon.

What is responsible for the painful sensation when a jellyfish stings?

• An electric shock from the jellyfish.

• Tiny dart guns called nematocysts filled with venom.

• The jellyfish's tentacles wrapping around the skin.

• A chemical reaction with the seawater.

What is piezoelectricity?

• The ability of certain materials to generate light when heated.

• An electric charge that builds up in some solid materials when pressure is applied.

• The process of converting light energy into electrical energy.

• The magnetic force produced by moving electric charges.

What are the main challenges in using Nomura jellyfish to power a city like Tokyo?

• Jellyfish do not produce enough energy individually.

• The cost of building and maintaining the power station would be too high.

• Jellyfish would constantly die and need replacement.

• All of the above.

Approximately how many tons of rain fall on Earth in a single day?

• 1.33 billion tons

• 1.33 trillion tons

• 14 billion tons

• 14 trillion tons

A banana falling from 3,000 meters would hit the ground with the same kinetic energy as what?

• A small pebble dropped from 1 meter

• A baseball thrown at high speed

• A bowling ball dropped from a 50-meter building

• A feather falling from a tall tree

What harmful gas would be released in massive quantities from the rotting banana mush, leading to a sudden spike in global temperatures?

• Carbon Dioxide

• Oxygen

• Methane

• Nitrogen

How much more heat does methane trap compared to carbon dioxide (CO2)?

• 2 times more

• 10 times more

• 28 times more

• 100 times more