Comprehension:

On the basis of the given passage, answer the questions that follow:

Studies on growth and development of infants emphasize the importance of good nutrition, a healthy environment and parent education. The development of the child has been found to be positively related to stimulation at home. High and low stimulation homes were characterized on the basis of leisure-time activities of parents, availability of toys, space and books. Children were rated on activity level and social, emotional, intellectual, motor and language development. Children from homes high on stimulation scored higher on four of the six aspects studied: activity level, social, language and intellectual development. Significant differences between adequately and non-adequately nourished children were observed on height, weight and intelligence, all measures favouring the well-nourished group_ On most measures, the inadequately nourished group also showed greater variation than the adequately nourished group.