CBSE Science Most popular Questions.

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Fertilisers Are Used On Farmlands To Increase The Nutritive Quality Of Soil And Thus, The Crop Productivity.

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Madhumita 5 Years Ago

The Following Graph Shows The Concentration Of Oxygen In A River

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The Diagram Shows The Flow Of Energy Through An Ecosystem.

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The Diagram Shows Part Of A River Into Which Sewage Is Being Pumped

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Identify A Deadly Poisonous Gas X Found At The Higher Levels Of Atmosphere.

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Give A Detailed Account Of Ozone Layer Depletion And The Harm Ozone Layer Depletion Has Caused To The Ecosystem.

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(i) If The Primary Consumer Has 400 J Of Energy (ii) State The 10 % Law, Associated With Flow Of Energy

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Give A Detailed Account Of Ozone Layer Depletion And The Harm Ozone Layer

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An Industry Is Being Established Near Town.

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What Happens Once The Suns Energy Reaches The Earth?

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Make Two Food Chains And A Food Web From The Following Set Of Living Organisms

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What Is Environment? What Type Of Substances Are The Major Pollutants Of The Environment?

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Categories Some Of The Activities Performed By You As An Eco-friendly Person.

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Divide The Wastes Generated From Your House Into

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Sangeeta 5 Years Ago

`Man Is Only A Consumer. Justify The Statement.

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Modified 5 Year Ago Sangeeta

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State Any Three Environmental Problems Caused By Man

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5 Years Ago

Why Do Harmful Chemical Concentrate As We Go Up In A Food Chain?

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(i) Which Part Of Waste Is Changed (ii) How Can Pesticides Be Allowed In Bevarages? (iii) On Recycling, Waste Paper Is Converted

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How Do Human Activities Affect The Environment?

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5 Years Ago

How Is Earth Kept Warm By Nature? Describe In Detail.

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5 Years Ago

Why Are Becteria And Fungi Called Decomposers? List Advantages Of Decomposers To The Environment.

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5 Years Ago

Make An Aquatic Food Chain Upto Tertiary Consumer Level.

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Look At The Following Figures. Choose The Correct One And Give Reason For Your Choice.

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5 Years Ago

Number Of Trophic Levels Is Limited To 3-4 In A Food Chain. Give Reason.

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5 Years Ago

How Much Energy Will Be Available To Hawks In The Food Chain

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5 Years Ago

Draw A Pond Ecosystem Showing Its Different Components

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5 Years Ago

Does Change In Lifestyle Add Waste To The Environment?

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5 Years Ago

What Term Is Given To The Phenomenon Where A Harmful Chemical Enters A Food Chain And Starts Accumulating?

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5 Years Ago

State One Reason To Justify The Position Of Man At The Apex Of Most Food Chains.

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5 Years Ago

How Is Being A Vegetarian Advantageous In Terms Of Energy?

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Fertilisers Are Used On Farmlands To Increase The Nutritive Quality Of Soil And Thus, The Crop Productivity.

The Following Graph Shows The Concentration Of Oxygen In A River

The Diagram Shows The Flow Of Energy Through An Ecosystem.

The Diagram Shows Part Of A River Into Which Sewage Is Being Pumped

Identify A Deadly Poisonous Gas X Found At The Higher Levels Of Atmosphere.

Give A Detailed Account Of Ozone Layer Depletion And The Harm Ozone Layer Depletion Has Caused To The Ecosystem.

(i) If The Primary Consumer Has 400 J Of Energy (ii) State The 10 % Law, Associated With Flow Of Energy

Give A Detailed Account Of Ozone Layer Depletion And The Harm Ozone Layer

An Industry Is Being Established Near Town.

What Happens Once The Suns Energy Reaches The Earth?

Make Two Food Chains And A Food Web From The Following Set Of Living Organisms

What Is Environment? What Type Of Substances Are The Major Pollutants Of The Environment?

Categories Some Of The Activities Performed By You As An Eco-friendly Person.

Divide The Wastes Generated From Your House Into

`Man Is Only A Consumer. Justify The Statement.

State Any Three Environmental Problems Caused By Man

Why Do Harmful Chemical Concentrate As We Go Up In A Food Chain?

(i) Which Part Of Waste Is Changed (ii) How Can Pesticides Be Allowed In Bevarages? (iii) On Recycling, Waste Paper Is Converted

How Do Human Activities Affect The Environment?

How Is Earth Kept Warm By Nature? Describe In Detail.

Why Are Becteria And Fungi Called Decomposers? List Advantages Of Decomposers To The Environment.

Make An Aquatic Food Chain Upto Tertiary Consumer Level.

Look At The Following Figures. Choose The Correct One And Give Reason For Your Choice.

Number Of Trophic Levels Is Limited To 3-4 In A Food Chain. Give Reason.

How Much Energy Will Be Available To Hawks In The Food Chain

Draw A Pond Ecosystem Showing Its Different Components

Does Change In Lifestyle Add Waste To The Environment?

What Term Is Given To The Phenomenon Where A Harmful Chemical Enters A Food Chain And Starts Accumulating?

State One Reason To Justify The Position Of Man At The Apex Of Most Food Chains.

How Is Being A Vegetarian Advantageous In Terms Of Energy?

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