What are carbohydrates? A. a type of base
B. a type of glyceride
C. a type of macromolecule
D. a type of amino acid

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two