Disposal of waste: This waste includes sewage, garbage and liquid waste from factories and homes. Wastages from chemical factories contain many toxic or poisonous chemicals. These are discharged into rivers. The river-water becomes poisonous for fish and other aquatic animals and plants.
Proximity. Proximity describes the tendency to perceive objects that are close to one another as being grouped together in a meaningful way. For example, you are likely to perceive no groupings in the following series of equally spaced squares:roximity. Proximity describes the tendency to perceive objects that are close to one another as being grouped together in a meaningful way. For example, you are likely to perceive no groupings in the following series of equally spaced squares:
home / study / social sciences / psychology definitions / attachment. Attachment is a strong emotional connection, such as the bond between a child and caregiver. In psychology, the concept of attachment helps explain development and personality. In the 1950s, research by Harry Harlow suggested that baby monkeys (and, analogously, human infants) desire not merely to be fed but to connect emotionally with a caregiver.