Answer:
I'm pretty sure the answer is 2.
Explanation:
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Answer:
im pretty sure it is b :)
Explanation:
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Answer:
By 1860, 30,000 miles (49,000 km) of railroad tracks had been laid,.
By 1860, 30,000 miles (49,000 km) of railroad tracks had been laid, with 21,300 miles (34,000 km) concentrated in the northeast.
Texas - Father Eusebio Francisco Kino
California - Junipero Serra
<span>True. The Precambrian time period is the longest time period in history, taking up more than 80% of the geological record. It runs from the Earth’s formation around 4.6 billion years ago to a period 570 million years ago.</span>
