Answer:
c. difficult
Explanation:
According to Thomas and Chess, there are three types of temperament in child i.e. slow-to-warm-up, easy and, difficult.
The slow to warm up child is quite negative, exhibits a low potency of mood, and shows low adjust-ability.
The easy child adjust easily to new experiences, normally have a positive mood, easily begin regular routines in infancy.
The difficult child cry very often and react negatively, as well as slow in adjusting to new experiences
Effects that are dependent on the size of the population and regulate the growth of populations are called density-dependent effects.
It gave people free land - 160 acres - west of the Mississippi,as long as they went and lived on it for at least 5 years and showed clear signs of having improved (ie cleared and cultivated) said land.
<span>The land available included good farming land near to rivers,so was an attractive proposition for families that were willing to move westwards and set up homesteads on the land given them.</span>