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.
B is the answer hope this helps
Answer:
The passenger aircraft would take 10.542 years to reach the Sun from the Earth.
The passenger aircraft would take 
years to reach the gallactic center.
Explanation:
The distance to the sun from the Earth is approximately equal to 
, if the passenger travels at constant speed, then the time needed to reach the sun is calculated by the following kinematic formula:
(1)
Where:
- Travelled distance, measured in kilometers.
- Speed of the passenger aircraft, measured in kilometers per second.
- Travelling time, measured in seconds.
If we know that 
and 
, then the travelling time is:
The passenger aircraft would take 10.542 years to reach the Sun from the Earth.
The distance between the Earth and the galactic center is approximately equal to 
. If the passenger travels at constant speed and if we know that 
and , then the travelling time is:
The passenger aircraft would take years to reach the gallactic center.
The correct answer for 1 is <span>D.the water table intersects the ground surface
Water is stored in an aquifer and when it ruptures the ground then it becomes</span> a spring.
The correct answer for 2 is A. sandstone aquifer
A sandstone aquifer cleans it because it has high porosity and therefore can be used to remove unwanted things from water.
The correct answer for 3 is <span>A. erosion
Waves hit rocks and after a while those rocks break. When they break, they fall off and the waves keep hitting the rocks and breaking new ones and so on and so forth until an entire cave is made.</span>
