Answer:
The space suit
Though the first man stepped on the moon in 1969, in the 1930s astronomers and physicists were already planning for the voyage to outer space. Emilio Herrera Linares, a Spanish military colonel, is credited with being the first to design a pressurised suit which was used in a high-altitude balloon flight in 1936.
The modern mop
While the mop isn’t the most glamorous of inventions, it certainly is one of the most useful. People had been using rags to wash floors since the 15th century but it was in the 1960s that the engineer Manuel Jalón Corominas had the idea to create a purpose-built mop with a bucket to ring the water out in.
Explanation:
that's just a few ^_^!!!
Answer:
Second question answer: There are some advantages of a command economy, and these include: Low unemployment rates due to the regulation of jobs by the government. Everyone has access to health care services and necessary services needed to live, and usually the fee is either low or free.
(I'm not sure about the 1st question)
Answer:
B: Bronze
Explanation:
Because this brought humans into the bronze/copper age. And bronze is a copper and tin alloy
<span>They traced an inheritance of dominion from the Western Roman Empire through the original coronation of the Frankish King Charlemagne as Emperor by Pope Leo III in the year 800 AD, after Charlemagne successful linked territories in Germany, France, and Northern Italy under his rule.</span>
Can we please see the choices, without them i won't be able to help you
