Answer:
sorry if its too big.
Explanation:
U.S. immigration has occurred in waves, with peaks followed by troughs (see figure). The first wave of immigrants, mostly English-speakers from the British Isles, arrived before records were kept beginning in 1820. The second wave, dominated by Irish and German Catholics in the 1840s and 1850s, challenged the dominance of the Protestant church and led to a backlash against Catholics, defused only when the Civil War practically stopped immigration in the 1860s.
The third wave, between 1880 and 1914, brought over 20 million European immigrants to the United States, an average of 650,000 a year at a time when the United States had 75 million residents. Most southern and eastern European immigrants arriving via New York’s Ellis Island found factory jobs in Northeastern and Midwestern cities. Third-wave European immigration was slowed first by World War I and then by numerical quotas in the 1920s.
Between the 1920s and 1960s, immigration paused. Immigration was low during the Depression of the 1930s, and in some years more people left the United States than arrived. Immigration rose after World War II ended, as veterans returned with European spouses and Europeans migrated. The fourth wave began after 1965, and has been marked by rising numbers of immigrants from Latin America and Asia. The United States admitted an average 250,000 immigrants a year in the 1950s, 330,000 in the 1960s, 450,000 in the 1970s, 735,000 in the 1980s, and over 1 million a year since the 1990s.
yangtze river and the yellow river
The answer is A. Appalachian Mountains
When American colonists headed west they crossed what will known today as the Appalachian Mountains.
Hopes this Helps u ;)
Answer:
Ans.1. If you are indoors, drop and take cover under a sturdy table or other furniture. Hold on to it and stay put until the shaking stops.
Stay clear of items that can fall and injure you, such as windows, fireplaces and heavy furniture.
Stay inside. You may be injured by breaking glass and falling objects if you run outside.
If you are at the coast, walk to higher ground away from the ocean as soon as it is safe for you to move.
If you are driving, move your car as far out of the normal traffic pattern as possible and stop if it is safe. Stay away from structures or objects that could fall on you, such as bridges, overpasses, light posts, power lines or trees. Stay inside your car.
If you are in the mountains, or near unstable slopes, be alert for falling rocks, trees or landslides that could be loosened by the earthquake.
Ans.2.Rural/Urban area: Rural areas have fewer people and fewer buildings so the size of the disaster is smaller. Distance from the epicentre: The closer a town or city is from the epicentre the more damage will be caused because of the strong seismic waves.
Ans. 3 There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.
Answer:
Silk Roads, Sea Roads, and Sand Roads?
Explanation:
The desire of elites for hard-to-find luxury items
from distant parts of the Eurasian network, as well as
the accumulation of wealth, especially among
merchants who participated in the trade, motivated
long-distance commerce. Sustaining the commerce were the support of empires and smaller states that benefited directly from the trade; the spread of religious traditions, including Islam and Buddhism, that through shared beliefs tied merchants and sometimes whole societies together over wide regions; and the development of technologies like larger ships and the magnetic compass.
