Answer:
The correct answer is "low concentration of oxygen".
Explanation:
One of the key characteristic of aquatic dead zones is its low concentration of oxygen. Aquatic dead zones are classified into this category for being hypoxic, condition that do not support the growth of most marine life. Most aquatic dead zones are in these conditions because of a high content of nutrient pollution caused by human activities.
C. Experimental data that support the conclusion
<u>Answer:</u>
A solution that can help to reduce noise pollution caused by things such as pile-driving is air-bubble curtain.
<u>Explanation:</u>
- The noise pollution caused by things such as pile-driven into the soil is very high.
- There are many solutions to reduce this noise pollution, air-bubble curtain is one of the useful and simplest solution to reduce noise pollution.
- This solution is based on dynamic sub-structuring technique and modal decomposition method.
- The major drawback of this solution is sound absorption becomes critical, when this method is employed in smaller piles it is because of the radiated acoustic energy is concentrated at higher frequencies than the resonance frequency of the air bubble.
Meridian
Called the international date line
Runs through the Pacific Ocean
