3 points Why don't the waves behind a boat or duck make a perfect V-shape, like
most books say they do?

Can you use radiation to generate electricity

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending