Question

when particles are suspended in liquid (like pollen in a water glass), they will zigzag randomly through the liquid and collide with one another in perpetuity. this type of random, continuous ______ is known as brownian motion, can be observed throughout the natural world. which choice completes the text so that it conforms to the conventions of standard english? choose 1 answer: a movement: which b movement which c movement, which d movement. which

Explanation:

The clause "which is known as Brownian motion" is a non - essential relative clause. Non - essential relative clauses are set off by commas in Standard English.

Answer:

C. movement, which