Soil Pollution
Chemistry ⇒ Environmental Chemistry
Soil Pollution starts at 10 and continues till grade 12.
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See sample questions for grade 11
A farmer notices that his crops are stunted and the soil has a foul smell. Laboratory analysis shows high levels of ammonia and heavy metals. What could be the possible sources of soil pollution in this case?
Describe one chemical method used to remediate polluted soil.
Describe the impact of soil pollution on human health.
Explain how soil pollution can affect the food chain.
Explain how the excessive use of chemical fertilizers leads to soil pollution.
A farmer notices that his crops are stunted and the soil has a foul smell. Laboratory analysis shows high levels of ammonia and heavy metals. What could be the possible sources of soil pollution in this case?
A chemical spill in a field has led to the contamination of soil with benzene. Suggest a suitable remediation technique and justify your choice based on the chemical properties of benzene.
A soil sample from an industrial area contains 0.5 mg/kg of cadmium. The permissible limit for cadmium in agricultural soil is 0.2 mg/kg. By what factor does the cadmium concentration exceed the permissible limit?
The presence of which element in soil is an indicator of pollution from industrial sources? (1) Nitrogen (2) Arsenic (3) Potassium (4) Magnesium
Which of the following is a biological indicator of soil pollution? (1) Earthworm population (2) Soil color (3) Soil texture (4) Soil temperature
Which of the following is a consequence of soil pollution? (1) Increased soil fertility (2) Loss of soil biodiversity (3) Improved crop yield (4) Enhanced water retention
Which of the following is a major source of soil pollution in urban areas? (1) Agricultural runoff (2) Industrial discharge (3) Forest fires (4) Volcanic eruptions
Fill in the blank: ________ is the process by which water-soluble substances are washed out from the soil, often carrying pollutants into groundwater.
Fill in the blank: The accumulation of non-biodegradable substances in soil is called ________.
Fill in the blank: The process of removing toxic substances from soil using plants is called ________.
Fill in the blank: The use of ________ pesticides can lead to the accumulation of toxic residues in soil.
True or False: Biodegradable waste is a major contributor to long-term soil pollution.
True or False: Composting organic waste can help reduce soil pollution.
True or False: Heavy metals like lead and mercury can accumulate in soil and enter the food chain.
True or False: Soil erosion is a direct cause of soil pollution.
