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The manned missions to the Moon had "consumables" that were used up and could not be replaced. One was food, but another was more crucial: lithium hydroxide used to filter carbon dioxide from the recirculated air. Otherwise it would build up no matter how much oxygen was added.

Long-term missions should be able to use energy (natural or generated) to produce food and clean recycled water and air. Green plants would be one way to provide food and remove CO2, but these require a lot of space for even a small crew.

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What are pressure vessels designed to hold?

A pressure vessel is a closed container designed to hold gases or liquids at pressures substantially different from ambient pressures. The pressure vessels need to keep the liquids and gases at a pressure where they can be stored properly since the outside pressure of the atmosphere might not be able to properly store the gas or liquid.


Explain why closed system typically do not exist on earth suggest two examples of a closed system created by humans?

Closed systems typically do not exist on Earth because natural systems are influenced by external factors like energy and matter exchange with the surrounding environment. However, humans can create closed systems, such as a sealed terrarium where all matter is contained and recycled within the system. Another example is a spacecraft in outer space, which is designed to largely operate independently from Earth's environment.


Why it is not advisable to place patient and live plants in a closed dark room?

Placing a patient in a closed dark room can lead to feelings of isolation and discomfort, impacting their mental and emotional well-being. Live plants require light for photosynthesis and growth, so placing them in a dark room would deprive them of essential sunlight and potentially harm their health.


What is the pulling or pushing force from a spaceship?

The pulling or pushing force from a spaceship is known as thrust. Thrust is created by expelling mass in the form of exhaust gases at high speeds from the spacecraft's engines, which generates an equal and opposite reaction force that propels the spaceship forward in a specific direction.


What is electricity that flows in a closed loop called?

A closed circuit.

Related Questions

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Is Chase Bank closed on Martin Luther King Jr. Day?

Yes, Chase Bank is closed on Martin Luther King, Jr. Day. Since it is a federal holiday, banks, post offices, and other non-essential federal government offices are closed.


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As a federal holiday, many banks and schools are closed in observance of Presidents' Day. The New York Stock Exchange and NASDAQ are closed for trading on Presidents' Day. The post office is not open and non-essential federal workers have the day off.


Is the post office open on Fourth of July?

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Is government agencies open on Veterans Day?

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Closed caption?

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What is a closed circuit television designed to do?

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If the piercing is closed on the outside is it closed inside too?

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