Water Purification Methods
Water Purification Methods: Sometimes water contains some unwanted substances which is not suitable for drinking. This type of water needs
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Multiple Choice Questions on Solid Waste Management
Multiple Choice Questions on Solid Waste Management 1-Waste is any material that is not needed by the (A) owner (B)
Read moreMultiple Choice Questions on Noise Pollution
Multiple Choice Questions on Noise Pollution 1-Noise is (A) an unwanted noise (B) an irritant (C) a source of stress
Read moreMultiple Choice Questions (MCQ) on Acid Rain
Multiple Choice Questions (MCQ) on Acid Rain 1-Acid Rain is caused by emissions of (A) Sulphur dioxide (B) Nitrogen oxide
Read moreMultiple Choice Questions (MCQ) on Global Warming
Multiple Choice Questions (MCQ) on Global Warming 1-Global warming also refers to as (A) Climate change (B) Ecological change (C)
Read moreMultiple Choice Questions (MCQ) with Answers on Ecosystems
Multiple Choice Questions (MCQ) on Ecosystems 1-A single bacterium in the soil interacts with (A) The water (B) Air (C)
Read moreWater pollution
Water pollution is deterioration of quality of land water (rivers, lakes and ground water) or sea water as a result
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When the heat released into the water or air produces some undesirable effects and it increases the environment temperature, this
Read moreSolar energy
The energy received from the Sun in the form of radiations is called solar energy. The sun has enormous energy.
Read moreRain water harvesting
Use of large amount of ground has resulted in lowering the ground water level. The widening imbalance between the groundwater
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