Puberty generally refers to to years old

10 to 19, Lesson 3 of Ideology and Moral Character.

According to the knowledge of the gods, puberty generally refers to the period when sexual function gradually matures from 10 to 19 years old from 11 to 12 years old for girls and 17 to 18 years old for boys. Li Bi's BCD item does not fit the topic

So choose A

10-19 years old

Puberty generally refers to the stage of 10-19 years old, in adolescence boys and girls are the most vigorous growth period, take the growth of an example, in adolescence boys can also grow 25-30cm taller, girls can also grow about 20-25cm. Adolescence should be given a normal diet according to the characteristics of adolescents, to ensure a balanced diet, eat fruits, vegetables, meat in moderation, and at the same time is an important stage of ideological development, should be correctly guided, and do some appropriate sports, so that children can grow up healthily.

Adolescence refers to the stage of an individual's sexual function from immaturity to maturity, and biologically refers to the transition period of the human body from immaturity to maturity, that is, the transition period of a man from childhood to adulthood. During this period, the personality is sexually mature and can already be fertile. It can be seen that adolescence is mainly a stage divided by the criterion of physical sexual maturity, which overlaps with the stage of life divided from the psychological or social aspect.

During the growth and development phase of the human body, puberty takes up half or more of the time. Adolescence currently does not have a consistent age range across countries, but generally refers to the age of the year, and in psychology, it is also called early youth, which is equivalent to the secondary school stage in education, and is characterized by rapid physical growth. In addition to adolescence, adolescence will continue until the age of 25-30.

Since males mature about a year later than females, the age range of puberty for males can be set at 14-18 years. It is normal to be 1 2 years early or late. Men of this age are often referred to as adolescent boys, while women of the same age are referred to as adolescent girls.

The term "youth" refers to a stage in the human life cycle, usually referring to the stage from childhood to adulthood. Everyone's puberty has its own unique characteristics, but the following aspects may be some of the basic characteristics of puberty

Enhancement of individuality and independence. At this stage, children usually become more autonomous and independent, they begin to pay more attention to their needs and interests and seek ways to meet those needs and interests.

Improvement of social skills. Adolescence is also a time of socialization, and children usually begin to engage with more people and learn to get along with others. They may join different social groups or organizations and connect with different people.

Emotional development. Adolescence is also a time of emotional development, and children may experience many emotional challenges and changes. They may experience emotional experiences such as loss, anxiety, anger, shame, pride, etc.

At the same time, they may also begin to learn about issues related to sex, relationships, family, and relationships.

Explore the Divination and Adventure. Adolescence is also a time of exploration and adventure, with children likely to try new things and activities and seek to challenge their limits. They may venture into dangerous or novel places and experience different cultures and lifestyles.

In conclusion, adolescence is a time of opportunity, challenge, and change. At this stage, children need to learn how to cope with their emotional and social needs, as well as how to explore and try new things. These experiences will lay an important foundation for their future lives.

1. Adolescence is the transition period from children's growth and development to adulthood, generally around 10 or 20 years old.

2. Puberty is a series of physiological, biochemical, endocrine, psychological and behavioral mutations based on sexual maturity. Adolescent individuals are in the "second peak of growth and development", not only height, body lead, shoulder width and pelvic width have obvious changes, but also the physiological functions of the nervous, cardiovascular, respiratory and other systems are also becoming more and more perfect, the sexual organs and sexual functions of both men and women are rapidly maturing, male spermatozoa, female menstrual cramps, and "secondary sexual characteristics" appear at the same time. Due to physiological changes brought about an awakening of sexual consciousness.

3. Generally speaking, females start and end their puberty earlier than males. The age at onset of puberty, the speed and degree of development, and the maturity of puberty all vary greatly among individuals.