“Environment: How Do You Define It”
The term “Environment” means “surrounding”. It includes physical, chemical, biological, cultural and social con
dition of nature. The environment is composed of biotic and abiotic factors. The living beings are called biotic and non-living things are called abiotic things. Both biotic and abiotic factors maintains the balance in the environment.
According to R.C Sharma “Environment encompasses everything living and non-living objects, the interaction between these and product of these inter-action.” Without environment no living organism can survive.
Importance of environment.
- Fulfillment of basic needs
- Source of energy
Types of Environmental Crisis
Pollution refers to the mixing of unwanted foreign agents to the environment. There are mainly four types of pollution. They are water pollution, air pollution, land pollution and noise pollution.
The unusual rise in temperature is known as Global warming. It is caused due to the increase emission of greenhouse gases (GHGs) such as carbon dioxide, sulphur dioxide etc.
Climate has been changing as a natural process. But in few decades, the human activities has accelerated the changing climate. So, we can observe the change in climate every year such as increased temperature, unseasonal rainfall, etc.
Solid waste means any garbage, refuse, sludge from a wastewater treatment plant, water supply treatment plant, or air pollution control facility and other discarded materials including solid, liquid, semi-solid, or contained gaseous material, resulting from industrial, commercial, mining and agricultural operations, and from community activities. In simple word all the non-decomposable solid wastes that are caused by human activities that effect environment are solid waste
Causes of Environmental Crisis
- Unplanned urbanization.
- Excessive use of natural resources.
- Lack of education and awareness.