During the decline of the harappan civilization, which group came to power in the indus valley

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

On a time limit! willing to give free 25 points plus brainliest for this drivers ed question if answered correctly : ) systematic searching is a skill that takes to master. a. no time at all b. repetitive practice c. innate talent d. extra gadgets

And intervening opportunity is an example of