Subsets of {dog, cat, fish} are Ф, {dog}, {cat}, {fish}, {dog, cat}, {dog, fish}, {cat, fish}, {dog, cat, fish}.
<span>The primary psychosocial milestone of childhood is the positive development of self-concept. This usually begins at 18 months, but continues throughout childhood. Self-concept is simply how one views oneself and one's abilities.</span>
Answer: C. is your answer
Soil and air because it is needed for the development of living beings
If you could tell me what cell it would be easier. Sorry I have to post it on Answer but I't does not show the commentary or whatever you guys call it.
