What is the approximate chlorine-carbon-chlorine bond angle in C2Cl4?

The great Nature has intended us to earn our bread in the sweat of our brow. Every one, therefore, who idles away a single minute becomes to that extent a burden upon his neighbours, and to do so is to commit a breach of the very first lesson of ahimsa. Ahimsa is nothing if not a well-balance, exquisite consideration for one's neighbour, and an idle man is wanting in that elementary consideration. (YI, 11-4-1929, p. 144-15)

the answer to the question is punishment. or more specifically, positive punishment.

positive punishment occurs when a behavior is given a negative consequence for the individual doing the behavior.

sara no longer wants to ask questions (the behavior) because she is ridiculed by mr. smith (the punishment).

reinforcement is inaccurate because reinforcement always gives positive consequences for the individual doing the behavior, be it by introducing a pleasant consequence or removing an unpleasant one.

answer is d. graphite coatings.

some connecting rods have _graphite coatings_ to lubricate the cylinder wall or piston pin.