Answer:
b. number of populations/land area
Explanation:
The formula to calculate population density is a very simple one, we just need the information about the land area and the number of population, and the formula is:
population density = number of populations / land area
Practically, what we do to get to the result is take the number of populations and divide it by the land area, so we get the population density.
Example:
467,012 people live in a land area of 14,111 km²
467,012 / 14,111 = 33.096
So we have 33.096 people living in one square kilometer.
The creation of the wheel. Hope this helps!
Answer:
c. results from industrial activity
Explanation:
Ocean and freshwater contamination results from industrial activity.
It is a true fact that raw sewage can cause eutrophication in a body of water. The correct option among all the options that are given in the question is the first option or option "a". The addition of excess amount of organic matter like manures, sewage can cause eutrophication. I hope the answer helped you.
Answer:
Nutrients as Limiting Factors
The availability of specific nutrients dictates organismal growth by controlling and limiting activation of cellular and metabolic pathways necessary for progress. The production of necessary components if often controlled by the presence and concentration of a limiting nutrient.
