1- Well i think that horoscope is based on a science, and i do believe that it usually gives a lot of true things as general characteristics when it's based on scientific studies, but not all those who give horoscopes are experts and do it based on scientific studies.
2-
LEO - The Boss
Very organized. Need order in their lives - like being in control. Like boundaries. Tend to take over everything. Bossy. Like to help others. Social and outgoing. Extroverted. Generous, warm-hearted. Sensitive. Creative energy. Full of themselves. Loving. D oing the right thing is important to Leos. Attractive.
well it's 99.9% true

but i don't know about the last part, maybe we should ask girls on the forum