How has the United States Federal Government impacted the sovereignty of tribes in the Pacific Northwest? It's for my CWI class. Please Y'all I need help

The U.S. government made reservations the centerpiece of Indian policy around 1850, and thereafter reserves became a major bone of contention between natives and non-natives in the Pacific Northwest. However, they did not define the lives of all Indians. Many natives lived off of reservations, for example. One estimate for 1900 is that more than half of all Puget Sound Indians lived away from reservations. Many of these natives were part of families that included non-Indians and children of mixed parentage, and most worked as laborers in the non-Indian economy. They were joined by Indians who migrated seasonally away from reservations, and also from as far away as British Columbia. As Alexandra Harmon's article "Lines in Sand" makes clear, the boundaries between "Indian" and "non-Indian," and between different native groups, were fluid and difficult to fix. Reservations could not bound all Northwest Indians any more than others kinds of borders and lines could.

its kind of blury sorry

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1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -