Q. Which country has the world's largest canal irrigation system?

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Q. What is the biggest cause of ground water pollution?

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Q. Garbage is another name of

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Q. Nuclear waste needs to be stored safely either

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Q. What area the environmental issues associated with nuclear waste?

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Q. What kind of metal waste is harmful for life in rivers and lakes?

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Q. The change to steam power and use of machines in factories is caused by the

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Q. What percent of rural population has access to sanitary facilities?

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Q. Nuclear power emissions causes leukemia disease in

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Q. What is salinization?

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Q. The industry and transport was first revolutionized by

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Q. Urban areas are center of

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Q. What is the half life of iodine?

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Q. The amount of land pollution depends on

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Q. What kind of metal waste is harmful for human health?

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Q. Name the major crops of Pakistan?

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Q. Which nutrients are occurred naturally in water and soil?

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Q. Pakistan's cultivated land is located on the alluvial plains in the

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Q. What are the examples of climatic climax?

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Q. Flowers with narrow, deep petal tubes, such as honeysuckle, are adopted to pollination by

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