Study this graph showing the sources of immigration to the United States. A line graph titled Major Sending Regions shows years on the x-axis and number of immigrants (thousands) on the y-axis. The x-axis is labeled 1820 to 2012. The y-axis is labeled 0 to 1,800. The regions are labeled Northern and Western Europe, Southern and Eastern Europe, Western Europe, and Asia and Latin America. the highest peak of immigration is 1990. The lowest amount of immigration was 1930 to 1940. 1820 to 1880 is labeled Westward Expansion. Progressive Era is labeled 1880 to around 1920. Immigration pause is labeled from around 1920 to 1970. Post-1965 Immigration is labeled 1970 to 2012. What conclusions can be drawn from the information in the graph? Select two options. Asia experienced increased emigration in the 1990s. Immigration levels have varied greatly during different eras. The United States has mainly attracted Europeans since 1900. Immigrants have come from different areas of the world at different times. The United States has been among the most common destinations for immigrants. i rlly this pls only answer if u have one

Aunitary state is a form of state where power is concentrated and there is a single center of power that extends its actions throughout the territory of the respective state. this, through its agents and local authorities, delegates of that same central power, and in its majority; it can count on a single legislating apparatus; except for certain exceptions, which legislate for the entire country; a judicial power, which applies the current law to the entire territory of the state and within which a supreme court of justice is established, which has jurisdiction at the national level; a single executive power, that is conformed by all the governors (president, governors, mayors, etc.); and a single political constitution, which governs all the territory and to which all the authorities and inhabitants of the state are subject.a confederation (from the latin: confœderatĭo) consists of the union of states that retain their sovereignty and are governed by certain common laws. initially there was talk of "confederation" in the case of alliances, for this reason the word "confederation" is still used in non-governmental civil society institutions. for this reason, the term confederation is also used to describe any type of organization that combines the authority derived from other semi-autonomous entities. in this case, sports confederations can be cited as some examples. however, the word confederation takes much more relevance when it comes to some permanent alliance of states or some association or association of states.characteristics of a federal government system

  a) written constitution. also known as magna carta and a necessity of the democracies that form federations to regulate the principles by which the government will be governed, because if they had to act without a body of specific laws would produce confrontations.

b) territorial division. federalism is constituted by the division of powers on the geographical basis of each territory.

c) decentralization. in a federal system there is both a central government and units of government lower than the central one, each making decisions regarding the provision of certain public services in their respective geographical jurisdictions.

d) supreme court of justice. to counteract the rigidity of the written constitution, judicial action is required to interpret said constitution and necessary changes can be made.

Water(like when there is a hurricane)some foods(not enough for everyone)

Accumulating more land so that your country can continue expanding without running into problems such as overpopulation