Your answer would be D. The 19th amendment
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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Answer: Multilateral or international agreement.
Explanation:
This agreement is an agreement between two, three, or more entities supported by international legal norms. This type of contract is most often concluded between states and is a legal act that must be respected. This contract originated in Vienna in 1969, and the contract came into practice 11 years later. The convention is currently accepted and signed by about 116 countries around the world.
Answer:
If a parent sees a little girl consoling her teddy bear and says “what a kind girl you are,” this is rewarding for the child and makes it more likely that she will repeat the behavior. Her behavior has been reinforced (i.e., strengthened). Reinforcement can be external or internal and can be positive or negative.
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