Answer:
The resistance of the air would be your answer.
Explanation:
It acts like same as Friction.
Hope it helps!
Magma. Magma can be made of many different materials, and once it breaches the earth surface it is called lava. Lava is what comes out of volcanoes, magma is what is still underground
The three ways in which materials respond to forces:
1.Tension,
2.Compression,
3.Bending.
Explanation:
Tension- The force that is exerted when physical objects come in contact with each other.
Compression- Compression is the application of balanced inward ("pushing") forces to different points on a material or structure.
Bending- A bending force is a force that is applied to a length of material.
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:
Correct answer is a) city-states, medieval states, nation-states.
Explanation:
First city-states emerged on the soil of Mesopotamia. Those were Sumerian city-states. Medieval states emerged after the fall off Roman Empire and nation-states were created afterwards. Most of them were created after Revolutions in 18th and 19th Century. That is why A is correct.
B is not correct because this was a development in newer period.
C and D is not correct because city-states emerged before nation-states and medieval states.
