The Biosphere
By Tanaya Battle

What is the Biosphere?

The biosphere is the regions of the surface, atmosphere, and hydrosphere of the earth  occupied by living organisms.

Important Key Terms

Biosphere: The regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.

Conservation: Preservation, protection, or restoration of the natural environment, natural ecosystems, vegetation, and wildlife

Population growth: The exponential rate of growth of midyear population

Sustainability: Broadly defined as meeting the needs of the present generation without compromising the ability of future generations to meet their own needs.

Biotic factors: The living parts of an ecosystem—the animals, plants, and microorganisms

Abiotic factors: The non-living parts of an ecosystem

Biomes: A large naturally occurring community of flora and fauna occupying a major habitat

Biodiversity: The variety of life in the world or in a particular habitat or ecosystem

Why is the Biosphere important?

Since the biosphere is basically all of the living things in the atmosphere, without it the earth would be a very lifeless planet just like Venus or Mars. The biosphere supports us, both in the food we eat and in the air we breath.Without the biosphere humans probably wouldn't have existed.

How do humans affect the Biosphere?

Since human population is increasing, we have a large impact on the environment and the organisms that live in it. The impacts that we have on the environment are mostly bad but there are some good impacts as well.

One main way humans negatively affect the environment is through Global Warming. Since we burn fossil fuels, cut down forests, and release CO2 or other related forms of carbon dioxide in the atmosphere, it is weakening the ozone layer. The ozone layer is a layer in the earth’s stratosphere containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.

A positive human impact is selective breeding. Selective breeding is the process by which humans breed other animals and plants for particular traits. It helps the plants to be more resilient to insects and diseases plus it helps them grow in land that is not suitable for them to grow in.

What are natural resources and how can we conserve them?

Natural Resources are materials or substances that occur in nature and can be used for economic gain. Many examples of natural resources are trees, water, fossil fuels, and etc.

Natural resources can be either renewable or nonrenewable. Renewable resources are resources which are replaced naturally and can be used again. Nonrenewable sources are resources of economic value that cannot be readily replaced by natural means on a level equal to its consumption.

We can conserve natural resources many ways such as recycling, reducing our of this resources, and even using alternate resources.

Biotic and Abiotic Factors

Biotic factors are all the living parts of an ecosystem. Many examples of biotic factors are plants, animals, humans, and etc. Many biotic factors benefit from both abiotic and other biotic factors all over the earth.

Abiotic factors are the nonliving parts of an ecosystem such as buildings, rocks, mineral, and so on.