The answer is density, temperature, and salinity. These are the factors that makes a current that is 50 meter less deep. The other choices will create a higher amplitude of the current.
Wind, it takes nothing to use wind, which means it doesn't put harmful emissions into the atmosphere.
Either under a table or chair, holding the legs, or in a doorframe. At least, that's what we learned in 2nd grade
I believe that the correct answer to this question would be "produced with the help of <span>ecosystem-based management". Books are often made out of trees, and in order to produce paper, ecosystem-based management is needed.</span>