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:
Proximity Proximity means closeness, either in terms of physical distance, personal relationship, or length of time. If someone is sitting next to you, then they are in close proximity to you. Likewise, events in time can be either proximal (near each other) or distal (far apart), and relationships can be close (e.g., a boyfriend or girlfriend) or distant (e.g., an estranged relative).