Chemistry
Grade-6
Easy

Question

Various health deteriorating compounds present in the smoke are:

  1. Arsenic
  2. Carbon monoxide
  3. Both A and B
  4. Sulphur dioxide

Hint:

Smoke is a mixture of toxic gases. Some of which is emitted from burning of fuels.

The correct answer is: Both A and B


    The correct option is Both A and B.
    Arsenic can cause lung and skin cancer and can cause other types of cancer. A link between chronic exposure to arsenic and cancer has been linked to skin cancer, lung cancer, and bladder cancer.
    Carbon monoxide is harmful because it binds to the hemoglobin in the blood, reducing the blood's ability to carry oxygen. This interferes with the oxygen supply to the body's organs. The most common effects of CO exposure are fatigue, headache, confusion, and dizziness due to a lack of oxygen supply to the brain.

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    The most important cause of air pollution is:

    The correction of is c)Burning fossils fuels.

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    Burning of fossils fuels like petrol, and diesel causes:

    The correct option is a)Global warming.

    • Fossil fuels are formed by the decomposition of buried carbon-based organisms that died millions of years ago.
    • They create carbon-rich deposits that are decomposed and burned for energy. They are non-renewable and currently provide about 80% of the world's energy.
    • They are also used in the production of plastics, steel and various products. Fossil fuels include his three types: coal, oil and gas.
    • When fossil fuels burn, large amounts of carbon dioxide, a greenhouse gas, are released into the atmosphere. Greenhouse gases trap heat in the atmosphere, causing global warming.
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    The correct option is a)Global warming.

    • Fossil fuels are formed by the decomposition of buried carbon-based organisms that died millions of years ago.
    • They create carbon-rich deposits that are decomposed and burned for energy. They are non-renewable and currently provide about 80% of the world's energy.
    • They are also used in the production of plastics, steel and various products. Fossil fuels include his three types: coal, oil and gas.
    • When fossil fuels burn, large amounts of carbon dioxide, a greenhouse gas, are released into the atmosphere. Greenhouse gases trap heat in the atmosphere, causing global warming.
    • The average global temperature has already increased by 1°C. Temperatures above 1.5°C increase the risk of sea level rise, extreme weather conditions, biodiversity loss, species extinction, food insecurity, and worsening health and poverty for millions of people worldwide. .

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