Which statememt best explains why the atomic theory developed efficiently? -Scientists ignored all previous knowledge about atoms.
-Scientists had used creativity and the scientific method in their investigations.
-Scientists had used philosphical viewpoint as a method of investigation.
-Scientists rarely repeated experiments to make sure the results were correct.

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost