The following are the achievements of the Olmec
civilization:
1.
Water Drainage
-
This civilization was able to construct an
extensive drainage system that is made up of conduits. This was discovered by
the archaeologists in the town of San Lorenzo, the largest city of Olmec
cities. These was carved into a U type shape and covered by capstones. This was
believed to be used as aqueduct to provide water throughout the cities.
2.
Calendar system
-
It was discovered that Olmecs have their own
calendar system. They are using shells to represent numbers in their calendar which
starts with zero. This is one of the first uses of zero as starting point of a
number.
3.
Ulama
-
This is a game of the Olmecs with the objective
of knocking the ball through the hole with the use of hips. The sap of a rubber
tree was utilized to produce balls that was used before.
4.
Writing system
-
They are usually credited as one of those
civilizations to be the first to have their own writing system in America. Their
writing is mostly symbols rather than letter representation.
5.
Compass
-
They are the one to first create compass that
existed in America with the basic understanding of gravity and magnetism.
Answer: Population growth can be defined as the increase in the number of individuals living within a political or geographical boundary.
The main factors affecting Population growth is basically birth rate, death rate, immigration, and emigration.
The single biggest factor that has contributed to the increase of population in the last 300 years is BIRTH RATE.
Nations with high population growth have low standards of living, while nations with low rates of population growth have high standards of living.
The correct answer would be D. When a hurricane reaches the land, its intensity decreases as a result of the friction and the lack of warm, moist air. The outer part of the hurricane would start to include that air from land which is drier and cooler which would increase the friction decreasing the strength of the hurricane.
Earth’s atmosphere traps heat from the sun, which makes Earth’s temperature suitable for living things.
