The pH scale is a measure of how acidic a solution is.
<h3>What is a pH scale?</h3>
The unit of measurement to determine how acidic or basic a solution is, is done via a pH scale, which ranged from 0 to 14, on which 0 to 6.9 means that the solution is acidic, and 7 is neutral.
Hence, the pH scale helps to determine the acidic amount of the solution.
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Answer:
The correct answer is option d: all of the above.
Explanation:
Having a teachers licences is a very honorable thing. Colleges and universities do not issue teacher licenses. Specific institutes built for this purpose issue licencees to teachers. The requirement for these license vary from state to state. The possession of a teacher's license gives the holder the legal right to teach.
Therefore all the options given in the question are true about teacher license.
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
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