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A short class with Sarah and her students. The other ways are under More.
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Today, we're going to learn about natural resources. Can anyone tell me what a natural resource is?
A resource that comes from nature!
Exactly! Now, these resources can be broadly classified. Who can name the two main types of natural resources?
Inexhaustible and exhaustible resources!
Great! Inexhaustible resources, like sunlight, are abundant. However, exhaustible resources, like coal and petroleum, can be depleted. Let’s focus on the exhaustible ones!
Coal is formed from the remains of vegetation that existed millions of years ago in wetlands. Can someone explain how we think coal formed?
Did it get buried under soil and then transform?
Exactly! This process is called carbonisation, which happens under high pressure and temperature over millions of years.
So, all coal comes from dead plants?
Yes! Coal is a fossil fuel because it comes from ancient organic material. And it is primarily made of carbon.
Now, let's discuss how we use coal. Can anyone mention some uses of coal?
We use it for cooking and electricity!
Correct! Coal is also used in industries. What about products derived from coal?
Coal tar and coke?
Exactly! Coal tar is a thick liquid used for roads, and coke is used in steel production. Remember, these products are very important in our everyday life.
Let’s now talk about petroleum. How is petroleum formed?
From dead sea organisms that get buried?
Yes! Over time, these organisms are transformed into petroleum. Can anyone tell me how we use petroleum?
For fuel and in plastics!
Exactly! Petroleum is refined to make petrol, diesel, and various petrochemicals that are essential in numerous products.
Why do you think it's essential to conserve fossil fuels like coal and petroleum?
Because they are limited resources?
Right! Overuse can lead to depletion and issues like air pollution and global warming. What are some ways we can conserve these resources?
Using alternative energy sources and only using what we need!
Excellent! We should always aim to use our resources judiciously to ensure a sustainable future.
Non-renewable resources formed from ancient organic matter.
Coal is formed through carbonisation of plant matter over millions of years.
Petroleum is created from marine organisms under high pressure and temperature.
Includes cooking, electricity generation, and production of industrial materials.
The importance of conserving fossil fuels due to their limited availability.
In past lush green, now coal is seen, from plant remains, it became our dream.
Once upon a time, in a wetland forest, plants lived happily until natural forces buried them, turning them into coal over ages.
Fossil fuels - Coal (C), Oil (O), Gas (G); Remember: COG fuels our great needs.
PETRO - Petroleum Energy Technology Resources Oil
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What is coal?
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What does refining petroleum produce?
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Why are fossil fuels exhaustible?
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What is the process of coal formation?
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What products can coal tar be used for?
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A solid fossil fuel formed from the remains of ancient vegetation.
Gas obtained from coal processing, used primarily for heating.
A thick liquid byproduct of coal, used in products like pavement and dyes.
Almost pure carbon, used as a reducing agent in metal extraction.
Natural fuel formed from the remains of living organisms, including coal, petroleum, and natural gas.
A gaseous fossil fuel, primarily used for heating and electricity generation.
A dark, oily liquid fossil fuel used for various energy and material products.
A facility that processes crude petroleum into useful products.
The section discusses coal and petroleum as exhaustible natural resources, highlighting their formation, uses, and the importance of conservation.
This section explores the classification of natural resources into inexhaustible and exhaustible types, particularly focusing on fossil fuels such as coal and petroleum. It explains their formation from dead organic matter, their various applications, and emphasizes the necessity of conserving these valuable resources due to their limited availability.
Natural resources can be classified into inexhaustible (unlimited) and exhaustible (limited) resources. This section primarily focuses on exhaustible resources such as coal, petroleum, and natural gas, which are also known as fossil fuels formed from the remains of living organisms over millions of years.
Due to their limited availability and adverse effects on the environment, fossil fuels should be used judiciously. Conservation efforts are necessary to prolong their availability and mitigate pollution and global warming risks.