# Short-Questions

Fast solutions for complex problems

25

## What happens to temperature as you descend through the water column?

As you descend through the water column, the water temperature decreases. How does water pressure change with increasing depth? Pressure increases continuously with depth in the ocean.

What happens to water pressure as you descend in water?

As you descend, water pressure increases, and the volume of air in your body decreases. This can cause problems such as sinus pain or a ruptured eardrum. As you ascend, water pressure decreases, and the air in your lungs expands.

### What happens to the temperature and pressure in the ocean as you descend?

The deeper you go under the sea, the greater the pressure of the water pushing down on you. For every 33 feet (10.06 meters) you go down, the pressure increases by one atmosphere .

Why does pressure increase with the depth of a water column?

Pressure increases as the depth increases. The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions. The greater pressure at the bottom would give a greater ‘force per unit area’ on the wall.

#### Why does temperature decrease with depth?

Cold, salty water is dense and sinks to the bottom of the ocean while warm water is less dense and remains on the surface. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface.

How is temperature affected when the depth increases?

The Earth gets hotter as one travels towards the core, known as the geothermal gradient. The geothermal gradient is the amount that the Earth’s temperature increases with depth. On average, the temperature increases by about 25°C for every kilometer of depth.

## Why can’t divers go too deep?

Nitrogen narcosis: Deep dives can cause so much nitrogen to build up in the brain that you can become confused and act as though you’ve been drinking alcohol. You might make poor decisions, such as taking out your regulator because you think you can breathe underwater.

What body systems are affected underwater?

Immersion of the human body in water has effects on the circulation, renal system and fluid balance, and breathing, which are caused by the external hydrostatic pressure of the water providing support against the internal hydrostatic pressure of the blood.

### Why is pressure so high at the bottom of the ocean?

At any depth in the ocean, the weight of the water above pushes on any object below it. With every foot an object descends into the ocean, more water is pushing down and against it, and more pressure is exerted upon that object.

What is the pressure at the bottom of a swimming pool that is 3 meters in depth?

29,400 pa.
The pressure at the bottom of a 3-meter deep swimming pool is 29,400 pa.

#### How much has this temperature changed at 1500 m depth?

The temperature of the sea water at the sea level in the mid latitude is 140C. * How much has this temperature changed at 1500m depth? Ans. The temperature of sea water at the sea level at 1500 m depth is 5 degrees centigrade.

How does pressure change when you dive into the ocean?

Dive down into the ocean even a few feet, though, and a noticeable change occurs. You can feel an increase of pressure on your eardrums. This is due to an increase in hydrostatic pressure, the force per unit area exerted by a liquid on an object.

## What is the pressure in the deep sea?

This vehicle allows scientists to observe the deep sea under tremendous ocean pressure. At sea level, the air that surrounds us presses down on our bodies at 14.5 pounds per square inch. You don’t feel it because the fluids in your body are pushing outward with the same force.

How are whales able to withstand pressure changes?

Whales, for instance, can withstand dramatic pressure changes because their bodies are more flexible. Their ribs are bound by loose, bendable cartilage, which allows the rib cage to collapse at pressures that would easily snap our bones.