The pressure at 99 feet below the surface of the ocean is: greater than the pressure at sea level greater than the pressure 33 feet below the surface about 59 pounds per square inch all of the above

 all of the above

Explanation:

The pressure increases as we go down into the ocean.

Thus pressure at 99 feet below the surface of ocean is greater than the pressure at sea level.

Also the pressure at 33 feet below the surface of ocean is greater than the pressure at 99 feet below the surface of ocean.

The weight of the atmosphere exerts a pressure of 14.7 pounds per square inch of force at sea level which is also equal to 1 atmosphere.At depth of 99 feet , the pressure exerted is 4 atm which is almost equal to 59 pounds per square inch.

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

it would be a gas formation