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Showing: Class 9 / Science (314 questions)
The process where bacteria convert soil nitrogen into molecular nitrogen is called:
Which of the following is responsible for the destruction of the ozone layer?
In a composite fish culture system, Catla fishes are typically:
Totipotency is a term used in advanced agriculture to describe:
Which of the following is considered a macronutrient for plants?
A particle is moving in a circular path of radius r. The displacement after half a circle would be:
Which of the following is NOT a postulate of Dalton's atomic theory?
Which of the following is not a factor contributing to soil erosion?
The tissue that provides flexibility to plants, allowing easy bending without breaking, is:
Which of the following is an incorrect statement about parenchymatous tissues?