Environment: Components, Segments, Weather, Climate and Environmental Studies
What is Environment?
Environment refers to the surroundings in which organisms live and interact. It includes both living and non-living components that influence survival, growth and evolution.
Components of Environment
The environment consists of two major components:
- Abiotic Components
- Biotic Components
Abiotic Components
Abiotic components are the non-living parts of the environment.
Examples
- Water
- Air
- Soil
- Mountains
- Sunlight
- Temperature
These factors provide the physical conditions necessary for life.
Biotic Components
Biotic components are the living organisms present in the environment.
Examples
- Plants
- Animals
- Humans
- Microorganisms
Biotic components depend directly or indirectly on abiotic factors for survival.
Environmental Factors
Environmental factors are all biotic and abiotic elements that affect living organisms.
| Abiotic Factors | Biotic Factors |
|---|---|
| Temperature | Plants |
| Sunlight | Animals |
| Water | Predators |
| Soil pH | Parasites |
| Humidity | Competitors |
Weather
Weather refers to the short-term atmospheric conditions of a place.
- Changes hourly or daily.
- Includes temperature, humidity, rainfall and wind.
- Occurs mainly in the troposphere.
Climate
Climate describes the average weather conditions of a region over a long period, usually 30 years or more.
| Weather | Climate |
|---|---|
| Short-term | Long-term |
| Changes frequently | Relatively stable |
| Daily conditions | Average patterns |
Segments of Environment
The environment consists of four major segments:
- Atmosphere
- Hydrosphere
- Lithosphere
- Biosphere
Atmosphere
The atmosphere is the gaseous envelope surrounding Earth.
Main Functions
- Provides oxygen and carbon dioxide.
- Protects from harmful radiation.
- Controls weather and climate.
- Maintains Earth's temperature balance.
Layers of Atmosphere
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
- Exosphere
Hydrosphere
The hydrosphere includes all water bodies on Earth.
- Oceans and seas contain about 97% of Earth's water.
- Glaciers contain about 2%.
- Fresh water available for use is about 1%.
Lithosphere
The lithosphere is the solid outer layer of Earth consisting of rocks, minerals and soil.
It provides land resources and supports agriculture and terrestrial life.
Biosphere
The biosphere includes all living organisms and their interactions with atmosphere, hydrosphere and lithosphere.
Elements of Environment
| Element | Description |
|---|---|
| Physical | Land, water, climate, minerals and soil. |
| Biological | Plants, animals and microorganisms. |
| Cultural | Economic, social and political systems. |
Importance of Environmental Studies
- Creates awareness about environmental conservation.
- Helps control pollution.
- Promotes sustainable development.
- Protects biodiversity.
- Supports resource management.
Major Causes of Environmental Degradation
- Deforestation
- Industrial pollution
- Vehicle emissions
- Population explosion
- Chemical waste
- Unplanned urbanization
Frequently Asked Questions
What is environment?
The surroundings consisting of living and non-living components.
What are the two major components of environment?
Biotic components and abiotic components.
What is the difference between weather and climate?
Weather is short-term atmospheric condition while climate is long-term average weather pattern.
What are the four segments of environment?
Atmosphere, Hydrosphere, Lithosphere and Biosphere.
What causes environmental degradation?
Pollution, deforestation, population growth and unsustainable resource use.
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