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:
vicinity. n, pl-ties. 1. a surrounding, adjacent, or nearby area; neighbourhood. 2. the fact or condition of being close in space or relationship. [C16: from Latin vÄ«cÄ«nitÄs, from vÄ«cÄ«nus neighbouring, from vÄ«cus village].