Why do we consider crop fields as artifi...

Why do we consider crop fields as artificial ecostems ?

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BHARATI BHAWAN (ENGLISH)-OUR ENVIRONMENT -Short-Answer Question

What is a food chain ? Write the common food chain of a pond ecosystem...
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We should carry cloth bags every time we go to the market . Why ?
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What are the abiotic components in an ecosystem ?
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What are the differences between primary consumers and secondary consu...
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Why does a food chain always begin with producers ?
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What positions do producers, herbivores and carnivores occupy in a foo...
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What is ten per cent law of energy transfer ?
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How does the concentration of pesicides and fertilizers increase in th...
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Why do we consider crop fields as artificial ecostems ?
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Why can the pesticides not be removed from food grains by washing ?
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What are the effects of ozone-layer depletion on human beings ?
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Why is improper disposal of waste a curse to environment ?
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Suggest some measures to replace commonly used nonbiodegradable produc...
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