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Nymphs and adults of BPH congregate at the base of the plant above the water level and suck the sap from the tillers. The affected plant dries up and gives a scorched appearance called “hopper burn”.
The product of the equivalent weight and valency of an element equals its ______.
What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius?
Which of the following elements is a member of the actinoid series?
Which of the following is a water soluble vitamin?
The Boiling Point of a liquid varies with the variation in…………...?
Newton's first law of motion gives the concept of –
Which atmospheric layer contains ozone layer?
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
The fossil of Archaeopteryx represents the evidence of origin of
Study the following questions carefully and choose the right answer:
The ending of a nerve cell used to acquire information from our environmen...