Question

k के किस मान के लिए रेखिक समीकरण युग्म X+y =4 तथा 2x+ky =3 का कोई नहीं होगा​

Answer 1

A During the sunrise the sun is set close to the Earth's horizon, and therefore light travels a longer distance through the atmosphere of the Earth.

This is the reason sun appear reddish early in the morning. The astronaut will not observe this phenomenon on the moon's surface, because the moon has no atmosphere.

Answer 2

Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed