which of the following statements is never true? A. rectangle is a parallelogram B. Trapezoid is a rectangle. C.

What makes a theory scientific? this is for earth and space science.

A professor insists that a research scientist in her laboratory repeat an experiment, despite the fact that the experiment took several weeks to complete. Which best explains the professor's reasoning?

What does carbon dioxide have to do with global warming

a) A table tennis ball has been hit is about 13.16 times as fast as the speed for the swimming. What is the speed of the table tennis ball?

Which statements about the structure of the periodic table are true? The periodic table has an irregular shape because it has more periods than groups. The inner transition elements are placed at the bottom of the periodic table for easy viewing.

Why are water storage tanks usually built on towers or placed on hilltops?

What does hydrochloride mean?

What happens to the concentration of the reactants and products during the course of a forward chemical reaction

As part of a network that carries signals throughout the body what type of tissue makes up the brain

Who is one of the first scientists to propose that species change over time