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Kerria sp. is a bivoltine species of lac insect.Kerria are generally bivoltine with two broods in a year. Some species like K. laccamysorensis (host plant-Sal), and K. sharda (host plant-Kusum)Â are tri-voltine having three broods in a year. Again, species of the genus Paratachardia(host plants-Tea, Sandal, etc.,) are all univoltine.
In the given figure, two identical circles of radius 4 cm touch each other. A and B are the centres of the two circles. If RQ is a tangent to the circle...
In a rectangle ABCD, ‘P’ is a point inside the rectangle. If PA = 8 cm, PC = 6 cm and PB = 5 cm, then find PD.
In the figure given below, PQ is parallel to RS. What is