A.
His theory of universal gravitation revolutionized astronomy.
B.
He invented a new branch of mathematics called geometry. It could be
used to calculate the speed, direction, and position of moving bodies
like the planets.
C.
He discovered white light was made up of the many different colors of
the spectrum.
The battle of Iwo Jima is a war between the US and Japan.
The US Army wanted to capture the whole island of Iwo Jima. They wanted to
capture the island in order to get hold of the 3 Japanese controlled airfields.
They wanted to control these airbases so that they can easily invade the
mainland Japan
Explanation:
The first settlement of the Americas began when Paleolithic hunter-gatherers first entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the Last Glacial Maximum. These populations expanded south of the Laurentide Ice Sheet and rapidly throughout both North and South America, by 14,000 years ago. The earliest populations in the Americas, before roughly 10,000
Modern agriculture in the United States is best described as
increasingly specialized (concentrating on limited numbers of crops or
types of animals). Although mixed crop and livestock farming still
exists, more and more farms concentrate on one or a few crops and
animals. Examples include dairy farming, corn and soybean farms,
pig-raising operations, specialized vegetable farming around cities, and
large-scale wheat production.
Answer:
The expansion of iron and steel production led to comparable increases in iron and coal mining. An important part of the tremendous economic growth following the Civil War was innovation. The number of patents issued by the Patent Office increased steadily
