Debes tener un territorio definido. Debes tener una población permanente. Debes tener un gobierno. Su gobierno debe ser capaz de interactuar con otros estados. Esos son solo algunos de los requisitos
Answer:
How do vertical gardens adapt to climate change?
Key benefits of green infrastructure include direct alleviation of urban heat island effect through shading of heat-absorbing surfaces and via plant evapotranspiration; reduction of maximum temperatures in the vicinity by shading walls from the sun; reduced heat entry into buildings through the absorption or reflection
Explanation:
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.
GAO report said hundreds of planes flying commercially today could be vulnerable to having their on board computers hacked.