1- (15 points) Discuss the entity integrity and referential integrity constraints. Why is each considered important

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.

Visualizing a game of “tag” to remember the meaning of contagious

The guy wire bd exerts on the telephone pole ac a force p directed along bd. knowing the p must have a 720-n component perpendicular to the pole ac, determine the magnitude of force p and its component along line ac.