La población en méxico 2010 fue de 114.1 millones
The factors that contributed to the environmental problems which exist in Europe was that B. Much of Europe is densely populated.
Spanish is the official language of Argentina
The achievements of the Tang and Song Dynasties include "the invention of gunpowder and the growth of Confucianism".
The Song dynasty (960-1279) takes after the Tang (618-906) and the two together constitute what is regularly called "China's Golden Age."
The utilization of paper cash, the presentation of tea drinking, and the innovations of gun powder, the compass, and printing all happen under the Song. (The way that the tradition traverses the year 1000 may make it simpler for students to find these advancements in time.)
<u>Answer:</u>
a) The land which supplies water to a "river system" is called a <u>watershed.
</u>
b) Pollution from a single, identifiable source is called <u>point source pollution</u>.
c) Pollution which is very difficult to link to a particular origin is called <u>non-point source pollution.
</u>
<u>Explanation:</u>
- A watershed serves as a feeder to the rivers in a particular river system.
- When a certain type of pollution has a single point of origin, it is called 'point' source pollution.
- When a certain type of pollution "cannot be traced back" to a single origin and is recognized to have multiple sources, it is known as 'non-point' source pollution.
