Answer:
4. Two
Explanation:
- The first major wave of immigration occurred in 1815
During this time , the united States provided a lot of lands with low prices. Which invited a lot of immigrants who seeks for business opportunities. The majority of the immigrants come from Ireland, which accounted for around 33% of the total immigrants in that year.
- The second major wave of immigration occurred in 1880
At this time, Industrial revolution started to came into United States, which lead to the creation of many factories. The majority of immigrants come from east and central Europe seeking for employment at these factories.
1. A thought of other should be respect
2. The environment should be created for dialogue between the conflicting parties
3. For all equal justice should be given
Scientists are helping in various ways to understand how rocks in the core of the Earth helps in tectonic plates movement.
Explanation:
The movement of the tectonic plates in the core of the Earth helps to regulate the water cycle that is very important for the planet. Plate tectonic is based on various geological phenomenon that includes mountain buildings, earthquakes and volcanoes as well as continental drift.
Plates play an important role by acting like a hard and rigid shell than the Earth's mantle. The strong outer layer is referred as lithosphere. Through research scientists found various flaws in the atomic packing in upper mantle minerals that becomes widespread under oxidising condition and thus speed of seismic waves reduces.
Answer:
Truman's 1947 address was the first to be televised, and in 1965, President Lyndon Johnson began the tradition of delivering the address in prime time.
