Answer:Estimating the average level of nitrogen in the water
Explanation:
The concerned citizens are trying to determine the average level of nitrogen in the water. They collected the samples for a month in order to get the correct average reading of nitrogen.
They might be interested in knowing whether there is excess nitrogen in water or not as excess nitrogen can overstimulate the growth of aquatic plant and algae. Excess growth can, in turn, clog water intakes, use dissolved oxygen, Block sunlight by covering the entire lake.
Segregation was not done at one's will. It was enforced by law. Therefore the answer is false. (I'm sorry if I am wrong I haven't dug much into this subject lol)
Answer:
Mainly Sahara Desert
Explanation:
The region lies just south of the Sahara Desert and is mostly savanna grasslands. Major rivers in the region such as the Gambia River, Senegal River, and the Niger River served as the means of transportation and trade. The capital city of Ancient Ghana was Koumbi Saleh.
Answer:
Cities and towns were established, and humans had more time for leisure activities.
Explanation:
The Agricultural Revolution is often referred to as "dawn of civilization" because:
Cities and towns were established, and humans had more time for leisure activities.
Answer:
Rice, cotton or mangoes etc.
