Well, i think the answer would be : Standardized weight and measures
Standardized weight and measures first developed by the muslim merchants in Cairo. Before this standard, Length was measured by the length of one's body.
For example to measure silk, the usually used the term such as 1 arm length.
The thing is, many traders started to hire shorter people to measure this to gain profit , making exchange often became problematic
hope this helps
Hello Nanababy2933, among nine presidential candidates at a debate, three are republicans and six are democrats is, <span>(a) in how many different ways can the nine candidates be lined up.</span>
When the Government becomes destructive and deriving their just powers.. So when the government doesn't protect citizens natural rights
The answer to your question is: last option.
20 protons
20 electrons
25 neutrons
Explanation:
Data
Calcium, atomic number 20
Atomic number indicates the number of protons in an element, so, if Calcium's atomic number is 20, it means that it has 20 protons.
In a neutral element, the number of protons = number of electrons, then
Calcium has 20 electrons.
Only the number of neutrons could change.
According to the previous description, the last option is correct. ( also put the options too)
Answer:
Read below
Explanation:
Asia was FILLED with islands and water unlike Europe, as all you need to do is rule over the meddtrainen sea ( Sorry for my bad spelling ) and English Channel, unlike Asia where you need lots of ocean dominance.
