<span>B. 0 - 12 hours.</span> There are four phases in the continuity implementation. Phase 1 is readiness and preparedness; Phase 2 activation and relocation, which acceptable time period is between 0-12 hours; Phase 3 - continuity operations, acceptable time period is between 12 hrs to 30 days and Phase 4 - reconstruction
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
Learn about tidal volume here:
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Hydrogen and Oxygen. Better known as H2O
Answer: Arctic Ocean
Explanation:
Because the Arctic Ocean is colder it is more dense
