return air filters

Composition of the air that we breathe in is: Nitrogen - 78%, Oxygen - 21%, Carbon dioxide - .03 - .04%, Hydrogen - traces, noble gases - traces. Thus the air naturally contains more oxygen than carbon dioxide. This oxygen-rich air is taken in by the nostrils. In the ..

The composition of air that we breathe in is: Nitrogen - 78% Oxygen - 21% Carbon dioxide - 0.03 - 0.04% Hydrogen - traces Noble gases - traces Thus the air naturally contains more oxygen than carbon dioxide. This oxygen-rich air is taken in by the nostrils. In the nas..

. This zone is called troposphere. Therefore, at higher altitudes, some of us find it difficult to breathe. Above the troposphere is the stratosphere. This zone is rich in ozone. Hence, it is also called ozonosphere. In ozonosphere, the sunlight converts oxygen to ozone by photochemical dissolution..

When the crystals are unstable, they are gently pressed between the folds of filter papers, and are finally placed in a vacuum desiccator to obtain dry crystals. If the substance is stable and has a high melting point, the crystals are pressed between the fold of the filter pap..

1. Carbon monoxide is colourless, neutral gas. 2. It burns in air or oxygen with a pale blue flame to form carbon dioxide. 3. Carbon monoxide has no action on limewater, whereas carbon dioxide turns limewater milky. 4. A strip of filter paper, dipped in a solution of palladium c..

The resources that can be replenished by the environment are called the renewable resources. These are also called the inexhaustible resources. These resources are constantly recycled in the environment like water. This also includes resources like the solar energy, air, plants, animals, ..

Sulphur dioxide is a dangerous air pollutant because of its corrosive properties; it irritates the eyes, nose, and lungs. It is produced by combustion of coal, fuel oil, and gasoline, since these fuels contain sulphur. The sulphur content of a fuel can be reduced by refining, so tha..

Adverse Effect of Sulphur Dioxide on Environment - Sulphur dioxide is a dangerous air pollutant because of its corrosive properties; it irritates the eyes, nose, and lungs. It is produced by combustion of coal, fuel oil, and gasoline, since these fuels contain sulphur. The sulphur content..

Mechanism of Olfaction - The nasal passage is lined by the nasal mucosa that have hairs and mucou-secreting cells. The hairs act like filters to remove the dust particles from the inhaled air. The mucous secreted by Bowman's gland keeps the inhaled air moist. The chemi..

The resources that can be replenished by the environment are called the renewable resources. These are also called the inexhaustible resources. These resources are constantly recycled in the environment like water. This also includes resources like the solar energy, air, plants, ani..