How did the Bantu expansion affect their technology?
The Bantu people brought iron-smelting technology and subsistence farming to areas previously dominated by hunter-gatherers or early pastoralists. These innovations facilitated population growth and the division of labour, forming powerful Bantu-controlled African states in the process.
What technology did the Bantu have that gave them an advantage over other African groups?
The Bantu's iron tools improved agricultural yields & their iron weapons made them formidable military opponents. The Bantu people's iron tools improved agricultural yields and their iron weapons made them formidable military opponents.
What technologies spread through the Bantu migration?
Bantu-speakers in West Africa moved into new areas in very small groups, usually just families. But they brought with them the Bantu technology and language package—iron, crops, cattle, pottery, and more. These pioneers then shared their more advanced technologies (and, in the process, their languages) with the locals.
Why was the Bantu migration important?
The Bantu Migration had an enormous impact on Africa's economic, cultural, and political practices. Bantu migrants introduced many new skills into the communities they interacted with, including sophisticated farming and industry. These skills included growing crops and forging tools and weapons from metal.
Which of the following was one of the advantages that the Bantu speaking farmers had over other foraging societies in sub Saharan Africa?
Which of the following was an advantage that allowed the Bantu to displace gathering and hunting peoples? The Bantu had iron tools, while hunting and gathering peoples had stone-age technology.
What spread when the Bantu migrated through Africa?
Bantu expansion reached almost all the way to the southern tip of the continent. The result was a great web of trade, cultural exchange, and shared technology across this wide region. The Lynderburg head, one of several sculptures from early Bantu-speaking peoples in southern Africa.
What technologies spread through the Bantu Migration?
Bantu-speakers in West Africa moved into new areas in very small groups, usually just families. But they brought with them the Bantu technology and language package—iron, crops, cattle, pottery, and more. These pioneers then shared their more advanced technologies (and, in the process, their languages) with the locals.
Why is the Bantu Migration important to Africa?
The Bantu Migration had an enormous impact on Africa's economic, cultural, and political practices. Bantu migrants introduced many new skills into the communities they interacted with, including sophisticated farming and industry. These skills included growing crops and forging tools and weapons from metal.
How did the Bantu peoples ability to use iron help them?
By about 500 B.C.E, the Bantu speaking peoples had mastered Iron metallurgy, which let them make axes and hoes that served to further clear lands for agriculture.
Who first used iron?
Archeologists believe that iron was discovered by the Hittites of ancient Egypt somewhere between 5000 and 3000 BCE. During this time, they hammered or pounded the metal to create tools and weapons. They found and extracted it from meteorites and used the ore to make spearheads, tools and other trinkets.
Who discovered metal?
Ancient man first found and began using Native Metals approximately 5000 years BC. Over the next 2000 years, leading up to the Bronze age, man mastered how to find, manipulate and use these native metals in better ways and in a range of applications.
Who discovered copper?
The Sumerians and the Chaldeans living in ancient Mesopotamia are believed to be the first people to make wide use of copper, and their copper crafting knowledge was introduced to the ancient Egyptians.
Who discovered gold?
Gold! On January 24, 1848, James W. Marshall discovered gold on the property of Johann A. Sutter near Coloma, California.
Who found copper?
The Sumerians and the Chaldeans living in ancient Mesopotamia are believed to be the first people to make wide use of copper, and their copper crafting knowledge was introduced to the ancient Egyptians.
Who first discovered metal?
Archaeological evidence indicates that 5,000-6,000 years ago the Mesopotamians also used copper. They displayed skill in harnessing and extracting the metal.
Who discovered steel?
The Chinese of the Warring States period (403–221 BC) had quench-hardened steel, while Chinese of the Han dynasty (202 BC—AD 220) created steel by melting together wrought iron with cast iron, thus producing a carbon-intermediate steel by the 1st century AD.
Who created silver?
History. Slag heaps near ancient mine workings in Turkey and Greece prove that silver mining started around 3000 BC. The metal was refined by cupellation, a process invented by the Chaldeans, who lived in what is now southern Iraq.
Why is gold named gold?
Where did gold get its name? Gold gets its name from the Anglo-Saxon word "geolo" for yellow. The symbol Au comes from the Latin word for gold, "aurum." Gold has only one naturally occurring stable isotope: gold-197.
Who invented pig iron?
Pig iron was not produced in Europe before the Middle Ages. The Chinese were making pig iron by the later Zhou dynasty (which ended in 256 BC). Furnaces such as Lapphyttan in Sweden may date back to the 12th century; and some in Mark (today part of Westphalia, Germany) to the 13th.
How is gold formed?
Gold minerals form in hot rocks in and around volcanoes. Low sulfur, gold-bearing hydrothermal fluids form when hot rocks heat ground water.
How many neutrons does potassium have?
Potassium-39 – It has 19 protons and atomic mass is 39. Hence, number of neutrons is 39 – 19 which is 20.
Which group in the periodic table that has valence electron of 2?
alkaline earth metals The number of valence electrons
| Periodic table group | Valence Electrons |
|---|---|
| Group 1 (I) (alkali metals) | 1 |
| Group 2 (II) (alkaline earth metals) | 2 |
| Groups 3-12 (transition metals) | 2* (The 4s shell is complete and cannot hold any more electrons) |
| Group 13 (III) (boron group) | 3 |
•Jun 5, 2019
Who invented steel?
One of the most significant inventors of the Second Industrial Revolution, Bessemer also made over 100 other inventions in the fields of iron, steel and glass….
| Henry Bessemer | |
|---|---|
| Citizenship | British |
| Occupation | Engineer and inventor |
| Known for | Development of the Bessemer process for the manufacture of steel |
How do you make pig iron in Minecraft?
The Pig Iron Ingot is an alloy ingot from Tinkers' Construct. It is made by placing 72 mB of molten Clay, 144 mB of liquid iron, and 40 mB of liquid blood into a Smeltery and pouring it into an Ingot Cast placed in a Casting Table.
Which is a metallic mineral resource found in igneous and metamorphic rocks in California?
Gold, silver, and iron are the major metallic minerals mined in California. Gold and silver often occur in quartz veins in igneous and metamorphic rocks that formed during mountain building.
What is placer deposit in geology?
Placers are a type of mineral deposit in which grains of a valuable mineral like gold or the rare earths are mixed with sand deposited by a river or glacier. Placer is also a mining method term. Placer mining uses water and gravity to separate gold from surrounding material.
What is the charge of potassium ion If you subtract number of protons to the number of electrons?
1.17: Ions
| Element | Protons | Net Charge |
|---|---|---|
| Potassium atom | 19 | 0 |
| Potassium ion | 19 | +1 |
| Sulfur atom | 16 | 0 |
| Sulfur ion | 16 | −2 |
Aug 24, 2020
What is the Valency of an element with atomic number 20?
Valency of First 30 Elements
| Element | Atomic Number | Valency |
|---|---|---|
| Valency of Chlorine | 17 | 1 |
| Valency of Argon | 18 | 0 |
| Valency of Potassium (K) | 19 | 1 |
| Valency of Calcium | 20 | 2 |
What is the role of valence electrons in the formation of chemical compounds explain?
In chemistry and physics, a valence electron is an electron in the outer shell associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
How does the number of valence electrons vary on moving from left to right?
<br> From left to right, valency increases from 1 to 4 and ultimately to zero in last group with respect to hydrogen <br> Valence electrons – it increases progressively by one on moving across the period.