Possibly, every 4 - 7 yrs. Depending upon how it was maintained.
No. There are no saltwater rivers, but some river deltasare saltwater systems where they meet the ocean (or other saltwater body).
Sharecropping and Tenant farming were two systems that replaced the plantation system in the south after the Civil War.
nitrogen
In the Ocean, no it wont. However, in a saltwater pool that is'nt cleaned often, the algae can grow in your hair and turn it green.
Saltwater crocodiles migrate, often traveling great distances. They catch a wave, and 'surf' on the ocean currents. They are the world's largest reptiles, often growing to 5.5-meters in length. They are poor swimmers.
The largest Crocodile in the world is the Saltwater Crocodile.
They are replaced when they go bad.
The filters are what needs to be replaced most often on the air conditioning units.
som states have more pepole
Caulerpa is a type of saltwater macroalgae. They are often used in saltwater aquariums to combat microalgae. They are known to be one of the most aggressive macroalgae in the aquarium in terms of growth and thus the uptake of nutrients. In recent years the use of Caulerpa has been dwindling due to their unstable nature. When Caulerpa is stressed due to low lighting or lack of nutrients it will often break apart and disintegrate in the tank. The use of Caulerpa is now commonly replaced by a much more stable macroalgae called Chaetomorpha.
Cuneiform was eventually replaced by alphabetic writing systems, such as the Phoenician alphabet, which evolved into the Greek and Latin alphabets. These systems were simpler and more efficient for recording language.
because saltwater fish must be live in saltwater