Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest.
Astrophysicist ______, who first theorized the existence of the solar wind in 1958, became the first living individual after which NASA named a Spacecraft.
If the polynomial \( 6x^{4} + 8x^{3} + 17x^{2} + 21x + 7 \) is divided by another polynomial \( 3x^{2} + 4x + 1 \), the remainder comes out to be ax + b, find a and b.
______ are a kind of waste disposal system of the cell. They help to keep the cell clean by digesting any foreign materials as well as worn-out cell organelles.
A glass cylinder with diameter 20 cm has water to a height of 9 cm. A metal cube of 8 cm edge is immersed in it completely. Calculate the height (correct to 1 decimal place) by which the water will rise in the cylinder (by taking π = 3.142).
