Question

Answer in long

1. what are the different ways in which gases gets contaminated ??
2. explain circumstances leading to acid rain . How does acid rain affect us ??
3. Describe the ‘Greenhouse effect’ in your own words.
4. what is global warming ? state its effect ??
5. what is ozone layer ? who damages it ??
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Answer 1

Answer:

Carbon monoxide, nitrogen oxides, carbon dioxide, methane and sulphur dioxide are the major pollutants of air. О Increasing levels of greenhouse gases like CO2 are leading to global warming. О Water pollution is the contamination of water by substances harmful to life.

Answer: Burning of fossil fuels such as coal and diesel releases a variety of pollutants such as sulphur dioxide and nitrogen dioxide into the atmosphere. These pollutants react with water vapours present in the atmosphere to form sulphuric acid and nitric acid respectively.

Answer 2

Answer:

1. There are also other gases present in small quantities such as Argon, Methane, Ozone and Water vapors. Polluted air has altered composition of Nitrogen, Oxygen, and Carbon dioxide due to the addition of harmful gases such as nitrogen dioxide, sulphur dioxide, carbon monoxide, and other particulate matter.
2. Burning of fossil fuels such as coal and diesel releases a variety of pollutants such as sulphur dioxide and nitrogen dioxide into the atmosphere. These pollutants react with water vapours present in the atmosphere to form sulphuric acid and nitric acid respectively.
3. The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. ... The absorbed energy warms the atmosphere and the surface of the Earth.
4. Global warming, the gradual heating of Earth's surface, oceans and atmosphere, is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse gases into the atmosphere. Despite political controversy about climate change, a major report released Sept.
5. Chemicals called chlorofluorocarbons (CFCs) are a reason we have a thinning ozone layer. A chlorofluorocarbon (CFC) is a molecule that contains the elements carbon, chlorine, and fluorine. CFCs are everywhere, mostly in refrigerants and plastic products.