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- What are the hármful effects of photochemical smog and how can they be...
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- Ozone in the stratosphere is produced by the help of uv radiations. It...
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- What do you mean by ozone hole ?What are its consequences ?
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- What are the major causes of water pollution? Explain.
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- Have you ever observed any water pollution in your area? What measures...
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- What is meant by BOD?
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- Do you observe any soil pollution in your neighbourhood? What efforts ...
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- What are pesticides and herbicides ? Explain using examples.
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- What do you mean by green chemistry? How will it help decrease environ...
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- What would have happened if green house gases were totally missing in ...
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- A large number of fish are suddenly found floating dead on a lake. The...
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- How can domestic waste be used as mannure?
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- For your agriculture field or garden, you have developed a compost pro...
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- CO2 is inert and harmless gas, yet it is thought to be a serious pollu...
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- Write the name of gas produced in Mathura refineries which can damage ...
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- Explain giving reasons: "The presence of carbon monoxide reduces the a...
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- A project study of students indicates that majority of people nearby a...
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- "Ozone layer acts as an umbrella to the Biosphere". a. Justify the st...
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- List the harmful effects of: i. Radioactive fallout ii. Smog iii. S...
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- Two Important oxides of carbon are carbon monox ide and carbon dioxide...
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