If you take clothes directly out of the dryer, they sometimes have built up an electric charge. What could you do in order to figure out if that charge is positive or negative?

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

The substances that are necessary for producing of certain hormones and that store and transport vitamins

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell