Referral networks are an important part of many dive operations in the home market. Instructors working in these locations may receive credit for the work they have completed via Teaching Experience Credits.
Information pertaining to this is found in a section by the same name in the Padi Professional Ratings section in the PADI Instructor Manual.
This credit, even though they haven't completed a certification, will allow them to apply for ratings such as Master Scuba Diver Trainer and Master Instructor.
Understanding basic emergency and first aid protocols and competency in knowing the difference is essential when working with students and customers in any work environment and being a SCUBA Instructor, more so.
A closed-circuit system recycles gas via a loop system. The scrubbing of CO2 is imperative as excess will cause hypercapnia in a diver which can be extremely dangerous and even fatal.
With the increasing heat of the ocean, it is less capable of providing these essential elements.
Increased temperatures underwater lead to coral bleaching which means less oxygen being released in toi the atmosphere and increased surface temperatures lead to less heat distribution, attributing to ever-increasingly larger storms.
The weight of the object is its downward force and the displacement, its upward force. For the ball to become neutrally buoyant those forces must be equal.
Disregard the depth of the water for this question but not the type of water it lies in. This is important for our equation.
Since the answer will be in litres we must convert the kgs to litres to do the equation.
1 litre of seawater weighs 1.03 kgs - this means the first step is 134 (weight of the object) / 1.03 (weight of water) = 130.09 - this is how many litres of water need to be displaced for the object to become neutrally buoyant but we already have 70 litres of upward force on our side.
This means all we have to do is subtract that from our total needed to find how much air must be added to a lifting device to displace the remaining water - 130.09 - 70 = 60.09 which we can round up to approximately 61 litres.