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Vadim26 [7]
1 year ago
8

Which of the following is the best example of a scientific question?

Biology
2 answers:
Mademuasel [1]1 year ago
6 0

Answer:

b

Explanation:

diamong [38]1 year ago
4 0

Answer:

its c

Explanation:

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Expiratory reserve volume (ERV) You ask your lab partner to inspire a normal tidal inspiration, and breathe out a normal tidal e
Bumek [7]

The average expiratory reserve volume or ERV is 810.

<h3>What is expiratory reserve volume?</h3>
  • Expiratory reserve volume or ERV is the amount of air that is exhaled forcibly.
  • This can be measured using a spirometer and is used to detect restrictive lung diseases.
  • It is the maximum amount of air that can be exhaled after normal tidal volume is exhaled.
  • Respiratory volume is the volume of air which is either inhaled, exhaled or stored in your lungs.
  • The doctors estimate the reserve volume with the help of spirometer to determine some lung diseases.
  • Once diagnosed with a lung disease, spirometry is used to monitor it.
  • Here, 3 readings of ERV are taken, calculate the sum of the these and divide by 3 to calculate the average ERV.
  • ERV= (800+ 850+ 780)/ 3= 810

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1 year ago
How do different properties of waves affect sound and light?
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The greater the force that produces a wave, the greater the amplitude of the wave and the greater the energy carried by the wave. In a transverse wave the higher the wave, the higher the amplitude. Sounds with greater amplitude will be louder; light with greater amplitude will be brighter
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2 years ago
Which of these chemicals is needed in order for the metabolic reactions of photosynthesis to occur?
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Photosynthesis is 
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3 0
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The answer is C. economy
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