sand-fly
house-fly
fruit-fly
tse-tse fly
The vitamin which is generally excreted by humans in urine is
The vitamins which is generally excreted in urine is
The waste management technique that involves the use of microorganisms to remove or neutralize pollutants from contaminated site is called
The water from a hand pump is warm in winter as
The waves used in sonography are
The weight of 6.023 × 10²² atoms of carbon is
The weight of a rusted iron object compared to that of an unrusted one is
The weight of an object is maximum
The wire of flash bulbs is made up of
The working principle of a washing machine is
