Question

Terms to remember:
1. Pollution
2. Environmental Day
3. Climate change
4. Chlorofluorocarbons (CFC)
5. Earth Hour and Earth Day
6. ‘Save Earth’

Answer 1

1. Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light.
2. World Environment Day is celebrated on the 5th of June every year, and is the United Nation's principal vehicle for encouraging awareness and action for the protection of our environment.
3. A change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century on wards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
4. CFCs are gases that are used in things such as aerosols and refrigerators and can cause damage to the ozone layer.

   5. Earth Hour is a worldwide movement organized by the World Wide Fund for Nature.

Earth Day is an annual event celebrated on April 22. Worldwide, various events are held to demonstrate support for environmental protection.

   6. Sunlight, air, water and vegetation help sustain life on the Earth. The Earth must be protected if life on the planet is to be protected. We can save the Earth by preventing pollution of the Earth and the natural resources such as air and water. We must also save our forests.

Answer 2

Terms to remember:

1. Pollution – When any harmful materials are introduced to natural resources like air, water, soil, etc., it is termed as pollution.

2. Environmental Day – June 5 of every year is celebrated as Environment day and on this day, different awareness programs are implemented to protect our environment.

3. Climate change – Climate change is a term used to represent an atmospheric condition in which normal climate pattern all over the world is disturbed and altered due to high level of $CO_{2}$ in the atmosphere.

4. Chlorofluorocarbons (CFC) – Carbon, chlorine, and fluorine are three molecules present in this chemical compound and it is a non-toxic, non-inflammable compound used as a solvent, refrigerants.

5. Earth Hour and Earth Day – Earth hour is an annual approach during which all people from the world shut down all lights and electronic appliances to support their effort towards preventing global warming. It is celebrated on first Saturday of March every year. Earth day is celebrated to protect the disappearing species of our earth every year in April.

6. ‘Save Earth’ – It is a slogan that indicates we have to protect and save our mother earth from pollution, global warming, like problems.

Learn more about Pollution:

Define pollution ? Name various

atmospheric pollutions.​

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