By: Helen Nan
The Four Systems
Do you know the four systems? Hydrosphere, biosphere, atmosphere, and geosphere. An example of hydrosphere is ocean, lake, pond. An example of biosphere is humans, plants, and animals. Geosphere, a surface of land. Soil, sand. And for an example of atmosphere can be air. It can be oxygen and carbon dioxide. The four systems are especially important to the earth. The weather is formed by the four systems. The four systems interact with each other to form a weather. The four systems cannot only decide the weather, they can also do a lot of things that you cannot imagine. Humans are biosphere, humans affected the four systems. Yes, the four systems got affected by us.
How are we effecting the Earth?
I believe you are reading my article with your I-Pad or I- Phone or your computer, laptop, Any technology. But did you know that, making one computer takes 240kg (about twice the weight of a professional basketball player) of fossil fuels? That is a lot. Humans are using too much fossil fuels. Fossil fuels are animals that died for a long time that is in the ground. Archeologists dig into the ground to find fossil fuels. So that humans can use them. But we used too much of fossil fuels. Scientists have estimated that the world's supply of crude oil will be gone between 2050 and 2075 if we continue to use it as quickly as we do now. It is easy but it is not. You need fossil fuels to do a lot of things. Fossil fuels make life convenient. Fossil fuels help you run our vehicles, power industry and manufacturing. Imagine If we did not have fossil fuels. What would happen? Have you ever considered this question? Well, first you cannot just use fossil fuels right away. You must burn them before you use them. When fossil fuels are burned, they release enormous amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming. This is how we affect the earth by using too much fossil fuels.
Humans Affect Earth Systems
Farming can affect the atmosphere. Did you know that cows can produce methane gas in their intestines? This type of gas can affect the atmosphere. Quantities of methane contribute to global warming. Also, farmers spray toxic chemicals on crops to kill weeds and insects. It then mixes with the air and pollute it. Toxic chemicals can harm a lot of living things. Running water can wash topsoil away when crops are planted on sloping land. Rich topsoil is often blown away by wind when it is plowed. Contour plowing reduces soil erosion. It helps the soil hold moisture and nutrients. For a long time, engineers have found diverse ways to change the way a river flows to help industries. They have straightened a river, made it deeper, or blocked it with a dam. But changing a river cause problem, warming up water can be a form of water pollution. Industries release harmful chemical into the air. Some chemicals in the air combine to form acids that dissolve raindrops. Factories need raw material. These materials are often mined from the geosphere. These chemicals can seep into soil and harm plants and animals.
Protecting the Earth Through Conservation
One part of protecting Earth’s system is through conservation. Conservation is the wise use of material and energy resources, so we do not run out of them. Trash is taken to a landfill to decompose. A landfill is a large area where trash is piled up and buried. Some material such as plastic do not decompose easily. They are taken to a landfill; they stay on the ground and produce pollution.
Protecting the Earth
Scientists and engineers are working on more ways to reduce air pollution. Many communities have tree-planting programs. They plant trees along the sidewalks and streets. Community also passes laws protecting the environment. They also have programs protecting the atmosphere. These programs aim to conserve fossil fuels and prevent the air pollution they cause. Often, communities have water and wastewater treatment plants. They protect water resources and ensure that citizens have safe water. Systems interact with each other, and changes in one system.
How can we protect the earth?
It is important to keep the earth stable so that organisms in the biosphere, such as humans, can meet their needs. But how can we protect the earth easy and simple just by ourselves? Well, what you can do is,you can reduce, reuse, and recycle. Cut down on what you throw away. Or you can volunteer. Volunteer for cleanups in your community, conserve water, choose sustainable products, shop wisely, use long-lasting light bulbs, plant a tree. Educate to the people what your learned from this article maybe? One of the best ways a country can protect the earth is to pass national laws. Countries can also work together to protect the earth. It starts from bits by bits. Remember, a slight change can make a significant difference.
Information from: Kidssearch.com & Tci.com
Image from NASA
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