The answer is test a hypothesis. You can't have a real scientific experiment without forming a hypothesis first. It also can't be creating monsters because that one doesn't make sense so we know that isn't correct. But based off the steps you have to take to perform a scientific experiment the answer would have to be to test a hypothesis.
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It is possible to replace the CO2 cylinder in an inflatable PFD each time the PFD is inflated.
<h3>What is an inflatable PFD?</h3>
An inflatable PFD is a specific inflator mechanical device based on a CO2 cylinder that fills a given sac with air.
Inflatable PFDs need to have to maintaining different types of safety measures to avoid the failure of the device (especially in emergency situations).
Inflatable PFDs can be classified according to their features into Type I, Type II, Type III, and Type V (for example, Type III allows to buoy to more than 15 pounds), where Type IV PFDs are not inflatable.
In conclusion, it is possible to replace the CO2 cylinder in an inflatable PFD each time the PFD is inflated.
Learn more about Inflatable PFDs here:
brainly.com/question/4349069
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Answer:
yes clean air is good for people i highly doubt you want nasty air up in your lungs
Explanation:
reasons why is because you can get really really sick.
The element that you will need to board the plane is la tarjeta de embarque.
<h3>What elements are necessary to board a plane?</h3>
To board a plane you will need to have:
- The boarding pass.
- An identification document.
In Spanish, these same elements are:
- Tarjeta de embarque.
- Documento de identidad.
<h3>What elements are not necessary?</h3>
Some elements that are not mandatory include:
- A driver's license (Licencia de conducción).
- Luggage (Maleta o equipaje).
- Food (Comida).
- Among Others.
Note: This question is incomplete; here is the missing section:
Which of the following do you need to board a plane? (1 point)
- El equipaje
- La maleta
- El agente de viajes
- La tarjeta de embarque
Learn more about Spanish in: brainly.com/question/1577820