Class 12

Introduction Addition or presence of undesirable particles which lowers the quality of water is known as water pollution. In 1974 Government of India passed the Water pollution Act to safeguard our water resources. Water pollution is caused when water bodies such as rivers, lakes, oceans etc. are being contaminated by industrial and agricultural wastes. Polluted […]

INTRODUCTION Water is one of the most precious resources on the planet, as it is required for all living organisms to survive. Oceans hold 97 percent of the earth’s total water from the surface to the atmosphere, while glaciers and icebergs hold the remaining 3%. The same water has been moving around the world for

The Hydrologic Cycle is the constant transfer of water from the surface to clouds and from clouds to the surface. The sun, air, and a variety of other variables all play a role in the water cycle, which sees water traverse through all three states of matter: solid, liquid, and gas. The water cycle is

Various Waste Types Waste is defined as undesirable and unusable materials, as well as a substance with no useful purpose. Trash refers to the waste that we find in our natural environments. Trash is a strong waste that includes waste from our homes (homegrown waste), waste from schools, workplaces, and other public places (civil waste),

Introduction Vaporization mechanism through which the state of a liquid converts into the condition of a vapour is known as vaporisation. As the temperature rises, the kinetic energy of the molecules rises as well. Because of the increase in kinetic energy, the force of attraction between the molecules decreases, Evaporation is the process of transforming

Introduction Landfills are a collection point for both domestic and commercial waste. The majority of household waste that is disposed of in landfills is biodegradable matter, such as food, paper, cartons, and wood. Plastic and tin wrapping can be found in other types of household waste. A large portion of the waste disposed of in

Pollution is a condition that occurs when contaminants cause a negative alteration in the natural environment. A number of chemical chemicals or energy, such as sound, light, or heat, can cause it. Pollutants include smoke, foreign particles, and dust, as well as excessive noise, heat, or sound. Pollutants wreak havoc not only on the environment,

Many chemical compounds are created from basic elements such as nitrogen, phosphorus, sulphur, etc. These compounds are transformed from one part of the environment to the other through various processes. This leads to a cycle of chemical compounds such as the water cycle, nitrogen cycle, ammonia cycle, etc. The fate of chemical compounds is what

The National Institute of Health reports over one million emergency room visits every year involving illegal drug use and nearly five million drug and alcohol abuse. Drug and alcohol abuse among teenagers leads to catastrophic repercussions on their health and families. In the 15-24 age group, alcohol or drug misuse is involved in 50% of

Secondary pollutants are a source of concern because they can be formed from a wide variety of compounds. Molecular oxygen, water, as well as hydrocarbons are among the molecules in the air that are affected by the connections of primary pollutants with some other molecules in the atmosphere. When these particles combine, they establish yellow