Answer:
The mean population is computed by adding the population for the beginning of each of the twelve months and for the end of the last month, and dividing the sum by 13.
Child labour society, family income, interpersonal relationships and employment-related factors are the characteristics of non-friendly environment.
<h3>Factors affecting children mental growth:</h3>
Environmental factors that adversely affected the growth and development in children include housing arrangements, family income, interpersonal relationships and employment-related factors.
These factors greatly disturbed the psychology and mental condition of a child so we have to take initiatives in order to provide good environment for children.
Learn more about environment here: brainly.com/question/17413226
<span>B. Cilia and white blood cells</span>
In the u.s. nearly 50%<span> of all pregnancies are unplanned.</span>
