Acubic centimeter can be expressed as

a.

ccm

c.

ct

b.

cm3 or cc

d.

ccm3

What is created when solids,liquids,an gases mix with one another

What are similarities and differences of reflection, refraction, diffraction and absorption?

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers