Answer:
Most connections are on the East Coast.
"The United States has the largest rail transport network size of any country in the world. The nation's earliest railroads were built in the 1820s and 1830s, primarily in New England and the Mid-Atlantic region. The Baltimore and Ohio Railroad, chartered in 1827, was the nation's first common carrier railroad." per Wikiapedia.
Explanation:
https://en.wikipedia.org/wiki/Rail_transportation_in_the_United_States
The Columbian exchange was the arrival of new species in the Old and the New Worlds. Among the many species that arrived in the New World were the bacteria and viruses that were causing many illnesses but to which the Old World people were immune. The Native Americans were not immune so many of them, by some estimates even 90 %, died.
The answer is<u> "watching a moving object".</u>
Sound and object movement can be utilized to change perceptions about body measure, as indicated by another investigation by a global group including UCL analysts.
At the point when an object is dropped, the brain precisely predicts when it will hit the floor by considering the range from which it fell. Falsely stretching the time it takes to hear the effect of the protest on the ground drives individuals to refresh their apparent body stature, making them feel taller.
The Sugar Act was a measure taken by England against its colonies, prohibiting the consumption of any sugar that had not been produced by the English Empire, which in effect functioned as a settler tax.
The Sugar Act required settlers to pay a tax on any shipment of sugar that was not owned by the British colonies. With this, the autonomy of the colonists began to be threatened.
Answer:
The sex ratio is the ratio of males to females in a population.
Explanation:
It is generally divided into four subdivisions:
primary sex ratio — ratio at fertilization
secondary sex ratio — ratio at birth
tertiary sex ratio — ratio in sexually mature organisms
quaternary sex ratio — ratio in post-reproductive organisms
