Answer:
The Jurassic Period is part of the Mesozoic era.
Some parts of the oceans looked red from the large amount of red plankton in the water.
The Jurassic Period was from 199.6 to 145.5 million years ago.
Explanation:
Answer:
more than three decades ago or more specificaly 2269 years ago
Explanation:
First, they made settlement of the West possible after the Civil War by connecting farmers (and miners, ranchers, loggers, and others) to markets.
Second, railroads helped to integrate different regions of the country economically.
