1
Question
Match the column
Column 1 Column 2
Acid rain
oxidation reaction
Ozone layer depletion
water vapour
Global warming
Oxides of sulphur and nitrogen
Respiration
CFCs
Humidity
Carbon dioxide
Match the column
| Column 1 | Column 2 |
|---|---|
Acid rain |
oxidation reaction |
Ozone layer depletion |
water vapour |
Global warming |
Oxides of sulphur and nitrogen |
Respiration |
CFCs |
Humidity |
Carbon dioxide |
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Solution
(A) Acid rain - (III) Oxides of sulphur and nitrogen
- When sulphur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain occurs. Sulfuric and nitric acids are formed when SO2 and NOX combine with water, oxygen, and other molecules. After mixing with water and other things, they fall to the earth.
(B) Ozone layer depletion - (IV) CFCs
- Chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs), and halons are man-made substances that deplete ozone in the upper atmosphere (stratosphere). The stratospheric ozone layer protects the planet from the sun's damaging ultraviolet (UV-B) radiation, making life possible.
(C) Global warming - (V) Carbon dioxide
- Carbon dioxide absorbs energy in wavelengths ranging from 2,000 to 15,000 nanometers, which overlaps with the infrared spectrum. CO2 absorbs infrared radiation and vibrates, re-emitting it in all directions. About half of the energy is ejected into space, while the other half is returned to Earth as heat, resulting in the ‘greenhouse effect.’
(D) Respiration - (I) Oxidation reaction
- In the human body, glucose is oxidised and released as energy. As a result, the oxidation reaction occurs when this reaction is conducted with oxygen. As a result, the process of respiration is an exothermic oxidation reaction.
(E) Humidity - (II) water vapour
- Humidity refers to the amount of water vapour in the air. The gaseous condition of water, known as water vapour, is often undetectable to the naked eye. The presence of precipitation, dew, or fog is indicated by humidity. Humidity is determined by the system's temperature and pressure.
Column I Column II (A) Acid rain (III) Oxides of sulphur and nitrogen (B) Ozone layer depletion (IV) CFCs (C) Global warming (V) Carbon dioxide (D) Respiration (I) oxidation reaction (E) Humidity (II) water vapour
(A) Acid rain - (III) Oxides of sulphur and nitrogen
- When sulphur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain occurs. Sulfuric and nitric acids are formed when SO2 and NOX combine with water, oxygen, and other molecules. After mixing with water and other things, they fall to the earth.
(B) Ozone layer depletion - (IV) CFCs
- Chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs), and halons are man-made substances that deplete ozone in the upper atmosphere (stratosphere). The stratospheric ozone layer protects the planet from the sun's damaging ultraviolet (UV-B) radiation, making life possible.
(C) Global warming - (V) Carbon dioxide
- Carbon dioxide absorbs energy in wavelengths ranging from 2,000 to 15,000 nanometers, which overlaps with the infrared spectrum. CO2 absorbs infrared radiation and vibrates, re-emitting it in all directions. About half of the energy is ejected into space, while the other half is returned to Earth as heat, resulting in the ‘greenhouse effect.’
(D) Respiration - (I) Oxidation reaction
- In the human body, glucose is oxidised and released as energy. As a result, the oxidation reaction occurs when this reaction is conducted with oxygen. As a result, the process of respiration is an exothermic oxidation reaction.
(E) Humidity - (II) water vapour
- Humidity refers to the amount of water vapour in the air. The gaseous condition of water, known as water vapour, is often undetectable to the naked eye. The presence of precipitation, dew, or fog is indicated by humidity. Humidity is determined by the system's temperature and pressure.
| Column I | Column II |
| (A) Acid rain | (III) Oxides of sulphur and nitrogen |
| (B) Ozone layer depletion | (IV) CFCs |
| (C) Global warming | (V) Carbon dioxide |
| (D) Respiration | (I) oxidation reaction |
| (E) Humidity | (II) water vapour |
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