Selma made an error while creating a chart to describe the technological design process for a new vacuum. which best describes how selma can correct the error in her chart? change “identify a need” to “identify a problem.” switch the descriptions for “identify a need” and “evaluate the solution.” change “implement the solution” to “test the prototype.” switch the stages “evaluate the solution” and “design a solution.”

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.