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 marketing is any system that utilizes location technologies to directly communicate with customers via their portable devices. Uses of proximity marketing include distribution of media at concerts, information, gaming and social applications, retail check-ins, payment gateways, and local advertising.roximity marketing is any system that utilizes location technologies to directly communicate with customers via their portable devices. Uses of proximity marketing include distribution of media at concerts, information, gaming and social applications, retail check-ins, payment gateways, and local advertising.