Answer:
Their composition
Explanation:
Colluvium deposits will contain cobble sized deposits ranging from sand to rocks of different types while the alluvium deposits are uniform deposits of cobble sized sand
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:
Thermal (Heat) Energy. Thermal energy is created from the vibration of atoms...
Chemical Energy. Chemical energy is stored in the bonds of atoms and molecules – it is the energy...
Nuclear Energy. Nuclear energy is stored in the nucleus of atoms.
Explanation:
Density (a) is the correct answer
<span>Scientists believe that differences in density cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. </span>
Answer:
Niger
Explanation:
The northern part of the river, known as the Niger bend, is an important area because it is the major river and source of water in that part of the Sahara desert. This made it the focal point of trade across the western Sahara, and the centre of the Sahelian kingdoms of Mali and Gao.
