Print Friendly, PDF & Email

Explain conditions leading to acid rain. How does acid rain affect biotic and abiotic things on earth and what measures are needed to stop acid rain?

Topic: Conservation, environmental pollution and degradation, environmental impact assessment.

6. Explain conditions leading to acid rain. How does acid rain affect biotic and abiotic things on earth and what measures are needed to stop acid rain? (250 words)

Reference:  NCERT Class VIII Science Chapter – 18

Why the question:

The question is based on the theme of Acid Rains and its impact on Earth.  

Key Demand of the question:

Discuss the conditions that lead to acid rains and its impact on biotic and abiotic components of Earth while highlighting the measures needed to stop the same.

Directive:

Explain – Clarify the topic by giving a detailed account as to how and why it occurred, or what is the particular context. You must be defining key terms where ever appropriate, and substantiate with relevant associated facts.

Structure of the answer:

Introduction:

Start with what you understand by Acid rains. Acid rain is the rain that has been acidified – with a pH less than 5.6 – formed when oxides of sulphur and nitrogen react with moisture in the atmosphere. .

Body:

Explain first the major reasons behind the occurrence of acid rains.

Discuss that acid rains are harmful for both biotic and abiotic elements. it corrode the surface and rendered it riddled with hole. Yellowing of marble and lime stone and other such delicate surface gets destroyed. It is also harmful for textile and metals as it reduce their quality and make them weak. Moreover it makes the soil acidic and reduces the fertility.

Discuss what needs to be done. Highlight the efforts of the government in this direction.

Conclusion:

Conclude with way forward.