Your answer would be B). The Olmec's invented a popular ball game that later cultures played.
A sister culture is a culture that gets traditions from civilizations that are around them and then pass on their culture to succeeding civilizations for generations to come. The Olmec's invented a game, and it was later on played by other cultures, and that perfectly fits the description of what a "sister culture" is.
Answer:
Lewis and Clark made significant additions to the zoological and botanical knowledge of the continent, providing the first scientific descriptions of many new species of animals, including the grizzly bear, prairie dog, pronghorn antelope, and mountain goat.
Explanation:
Employed more people to create more products is the answer.
Technology.
World War 1 was the first war in an industrialized age. New weapons and vehicles were used in this war that had never been used before. With the invention of the plane in 1901 led the way for the plane to be used as a gun ship, light bomber, and heavy bomber.
