What’s a chemical reaction

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

What is the most important inorganic material for livings things? ! due tomorrow!