Answer:
Explanation:
The statement cleaner than coal is the coal emission without the harmful gas CO2. In this clean coal method, carbon dioxide is captured and stored somewhere else.
Coal is the most essential element for the production of energy.
It is a cheap source of energy production such as thermal energy, electrical energy. It has a drawback that, it is the major cause of air pollution. Because coal contains carbon dioxide, sulfur dioxide, some amount of mercury, nitrogen oxide. When these gases emit into the air it causes pollution. Many people die with coal smoke because it causes asthma, lung cancer.
To solve this problem many industries use clean coal technology.
In this method, the CO2 is separated from the coal gas emission.
This is called carbon capture and storage method. The captured carbon dioxide is then stored underground or under the sea level.
So that the emitted gas is free from carbon dioxide. It is also called the absorption of carbon.
In another method, the coal is washed before use in factories to separate the sulfur dioxide. These methods are too expensive, that many industries do not follow this clean coal method. But it is a new technology to reduce pollution.
