Survival in a Sealed Environment

What was the initial experiment that inspired the creation of the 30,000-liter jar?

• Creating a terrarium with insects

• Building a greenhouse for plants

• Growing plants in a vacuum chamber

• Sealing a jar with soil and plants for two years

What is the purpose of the airlock system in the biodome?

• To increase the oxygen levels inside

• To minimize air exchange when adding or removing items

• To allow plants to grow faster

• To regulate temperature

Who did the narrator consult for safety precautions regarding human physiology?

• Patrick Kelly from the YouTube channel Core Porous

• A chemist

• A botanist

• A physicist

What percentage of the air we breathe is oxygen?

• 50%

• 21%

• 1%

• 78%

What is the narrator's main concern about the remaining 1% of the air composition?

• It is beneficial for plants

• It is mostly carbon dioxide

• It can be deadly

• It helps in cooling the environment