Teachers in Anji observe and take part in play, but they do not intervene.
<span>control of the gold-salt trade routes- i believe so not sure for sure but i put this answer.</span><span />
In a prominent model of self-administration developed by George Koob, rats are allowed to self-administer cocaine for either 1 hour each day (short access) or 6 hours each day (long access).
Answer:
B > Voluntary trade involves two parties, both of which agree freely to making a trade
<span>People's diverse interests and backgrounds divide them into numerous groups with distinct needs and wants, a condition most accurately described as market fragmentation.
</span><span>The term marker fragmentation denotes the creation of many consumer groups due to a diversity of distinct needs and wants in modern society. </span>It is the development of small new market segments within a saturated market.