Answer:
the answer is D cause the government spies on suspected school shooters all the time
Porosity is a cavity-like discontinuity and occurs due to the entrapment of gases in the molten weld pool. These entrapped gases don't get a chance to escape from the molten weld pool and hence cause porosity.
<h3>Which discontinuities are caused during welding?</h3>
Weld discontinuities can be defined as "an interruption of the typical structure of a weld, such as a lack of homogeneity in the mechanical, metallurgical or physical characteristics of the weld." Porosity is considered to be the most critical discontinuity. Weld discontinuities include porosity, incomplete fusion, excessive melt.
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Hi here you go
1. mathematics
2. trade
3. astronomy
4.a form of written communication with pictures
5.the invention of the wheel
6.the concept of time.
Answer:
This influx of economic migrants has exacerbated ethnic tensions within Russia. Because regional governments cannot pay their energy bills, clashes over energy has caused even more tension.
Explanation: Economic collapse has produced social dislocation and extreme poverty. Widespread corruption and the entrenchment of aging leaders and their families have eroded support for central governments and constrained the development of a new generation of leaders.
