<span>The answer to the question is false. While human activities are responsible for much of the eutrophication seen in bodies of water, it is not responsible for ALL of them. One example can be seen in stagnant water. Stagnant water collects more nutrients than moving water. The collection of nutrients from any source of stagnant water can cause an overgrowth or algae or phytoplankton, causing eutrophication.</span>
The answer to your question is,
Preoperational
-Mabel <3
Technology development over the years
yeah
here's why :
In order to measure qualitative data quantitively, categorical variables are used. These type of variables are defined by a set of positive numbers, and each number is connected to a nominal category, which has been defined based on a qualitative property.
For example, if conducting a research about holiday patterns, one of the variables registered aims to measure the season in which people travel the most hence the following categories are defined: spring (=1), summer (=2), autumn (=3) and winter (=4). This is a categorical variable. If it only had two categories it is denominated a dummy or binary variable (values: 0, 1).
