The four castes in india are also called
a. subgroups
b. varnas
c. jatis
d. ethnic groups

Which of these is a consistent periodic pulse separated into equivalent intervals of time?

Where is the photoshop flaw in this picture? a. the fish is too large, b. the head has been pasted on another persons body, c. the guy has no hands, d. the background has been altered.

Which term is associated with the loudness of a sound