Problems of Adolescents : Owing to various changes, children of this age group face many problems; indeed, it is very delicate period of their life. The major problems, which adolescents face, are given below :
(i) Physical Problems: During adolescence, many bodily or physical changes take place. Menstruation and nightfall become a phenomenon for girls and boys respectively. Development of *** glands takes place. Due to these changes, adolescents feel restless and worried.
(ii) Mental Problems : During this age, stress, tension and strife are common. These traits create many mental problems. An adolescent faces many problems such as difficulty in co-operating with others, anxiety maladjustment, etc.
(iii) Problem of Aggressive Behaviour: In this age group, children tend to show aggressive behaviour. They become aggressive on small matters. They become irritated easily. When they are asked to do certain activity, they become repulsive. They try to become hero.
(iv) Lack of Stability and Adjustment : An adolescent does not remain stable and he faces adjustment problem. His behaviour does not remain content. He feels himself unable to adjust with other people. He fails to co-ordinate with others. Not only outside but he cannot adjust himself in his family. He cannot co-operate with his family members. He feels that he is under
pressure of his parents. He wants to have free atmosphere at home.
(v) Emotional Problems: The life of an adolescent is full of emotions. Under such emotions, he performs some uphill task, which seems to be impossible in the beginning. Rose says, "The adolescent lives intensely emotional life, in which we can see once more the rhythm of positive and negative phases of behaviour in his constant alternation between intense excitement and deep depression. " Sometimes, the adolescent becomes so excited that he considers himself to be at the top of the world and, sometimes, he finds, himself in a state of depression. He feels himself emotionally disturbed.
(vi) Problems Related to *** : During adolescence, children face many problems, which are related to ***. They try to meet the opposite ***. Sometimes, they become so eager that they do not hesitate to leave their family. They feel restless due to their sexual urge. Rose says, “***, then, is the fundamental fact of adolescence, if not all life. Like the overflow of Great River, it irrigates and fertilizes great tracts of life’s territory.”
(vii) Problems of Self-support: Each and every adolescent needs self-support. He wants to make his own place in the society. He desires to live a fruitful life. Rose says, “The adolescent desires to find his place in the world. The desire is a genuine need and refers to the need for self-support. He faces the problems of carrier selection. He does not want to depend upon his family members. He remains in between dependence and independence.”

Ecology is a  branch of science including human science, population, community, ecosystem, and biosphere. Ecology is the study of organisms, environment and how the organisms interact with each other and their environment. It is studied at various levels such as organism, population, community, biosphere, and ecosystem.

Ecologist’s primary goal is to improve their understanding of life processes, adaptations and habitats, interactions and biodiversity of organisms.