Henry Ford came up with the assembly line mode of production, which facilitated mass production and revolutionized the industry. Through mass production, the cars could be produced inexpensively and at lower wages which made them available to the mass market. As a result, he was able to sell millions of cars
Antonyms of joyful are sad, distressing and missable.
During the twentieth century, the study of the large-scale structure of the universe evolved from the theoretical to the practical; the field of physical cosmology was made possible because of both Einstein's theory of relativity and the better ability to observe extremely distant astronomical objects. Option A is correct.
Albert Einstein formulated two theories which he included to his theory of relativity. On the one hand the special relativity and on the other hand, general relativity.
The former refers to the lack of gravity and the physical phenomena that occurs because of it and the latest refers to the law of gravitation.
<span>Both answers "a" and "e" are correct here. Like most inventions that make their way into prosperity, the development of the airplane was made a priority to aid in military efforts. The Army saw an advantage in using the planes to strike enemies from above and far from the locations of their own troops. It made winning battles easier.</span>
