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In which of the following activities, you need large quantity of water?
A food chain will not begin in the absence of
Green plants trap solar energy and synthesize their food, all animals directly or indirectly depends upon plants hence a food chain will not begin in the absence of green plants.
Which of the following bind the soil together?
Roots of trees normally bind the soil together.
Which of the following statements is not correct?
Which one of the following is the inorganic impurities present in sewage?
The waste water coming from kitchen is called ____
Which one of the following statements is correct?
Statement 1: An underground pipe which carries away dirty drainage water is called sewer.
Statement 2: The wastewater treatment plant is also called sewage treatment plant.
Which one of the following diseases is caused by microbes present in waste water?
Which one of the following is the organic impurities present in sewage?
Which one of the following nutrients are present in sewage?