List the various abiotic environmental factors.

Name: Problem 12, Chapter 13: NCERT Class 12 Part 1 - Biology
Uploaded: 2021-06-26T15:24:18-08:00
Duration: 7 min 25 s
Channel: Qudsiya Anis
Description: List the various abiotic environmental factors.

Key Concepts

Abiotic Factors

Abiotic factors refer to the non-living physical and chemical components of an ecosystem that influence the living organisms present. These factors help determine the environment's characteristics and can significantly affect the distribution, behavior, and survival of species within an ecosystem.

Temperature

Temperature is a critical abiotic factor that affects the metabolic rates, reproduction, and survival of organisms. It influences processes such as enzymatic reactions and can dictate the geographic distribution of species based on thermal tolerance.

Water

Water availability, including aspects of precipitation, humidity, and moisture levels, plays a vital role in sustaining life. It affects the physiological processes of organisms and shapes the structure of habitats by influencing soil conditions and nutrient cycles.

Light

Light, primarily from the sun, is essential for photosynthesis in plants and drives energy flow in ecosystems. It also affects the behavior and biological rhythms of many organisms and determines the types of species that can thrive in a given environment.

Soil Composition

Soil composition includes physical characteristics such as texture and structure, as well as chemical properties like nutrient content, pH, and mineral composition. These factors influence plant growth, water retention, and the overall health of terrestrial ecosystems.

Air Quality

Air quality involves the composition of gases, including oxygen, carbon dioxide, and other trace elements or pollutants. It directly impacts respiration in organisms and plays a role in determining the suitability of habitats for sustaining various forms of life.

Chemical Factors

Chemical factors, such as pH, salinity, and the presence of nutrients or toxins, affect both the biological and biochemical processes in an ecosystem. These factors regulate nutrient availability, influence species distribution, and can modify environmental conditions through chemical reactions.

Transcript

00:01 Given problems, we'll be discussing about certain abiotic environmental factors.

00:05 So what are the abiotic environmental factors? these are the non -living components of the environment.

00:16 So we'll be discussing about these four abiotic environmental factors.

00:21 Starting with the temperature, temperature is most ecologically significant environmental factor.

00:27 It varies seasonally on land.

00:30 That is, it decreases.

00:34 Progressively from the equator towards the polar regions because the sunlight is received at the max the maximum sunlight falls near on the equator regions and it and also the plains the temperature on planes is lower is a decreases okay is sorry the temperature on planes is higher as compared to the mountains now there are different types of habitats depending upon their temperature so in certain habitats the temperature ranges to sub -zero level while in some habitats the temperature reaches to more than 50 degrees celsius during summer such as in desserts there are also some habitats where the temperature average temperature exceeds more than 100 degrees celsius these include thermal springs and deep thermal hydrothermal vents in the sea now the there are also organisms who are able to adapt and thrive in wide range of temperatures these are called ecto these are urethermals and the animals or organisms who can who can tolerate only a narrow range of temperatures are called stenothermals.

02:11 Examples of stinothermers include amphibians and polar bears.

02:17 And examples of urethermers which include mammals and birds.

02:24 Now the next important factor is soil.

02:28 Now the properties and nature of soil vary in different places.

02:36 And the types of plant that grows on the soil are dependent on the properties of the soil.

02:53 So the properties of the soil depend on three processes.

02:57 These include the climate of the ecosystem, the developmental process of the soil and the weathering process.

03:13 Weathering process.

03:26 Now, soil is very important.

03:27 It plays a very important role in holding the groundwater.

03:32 And it also helps in growing plants and agriculture.

03:40 Now the next factor is water...