Question

a) This is the second layer where
the jet planes fly _________.
b) _________ is the instrument
used to measure atmospheric
pressure.
Q-1 Give reasons:
a) A candle goes off after sometime when
it is conered by a jar or a
tumbler
ans.​

Answer 1

Answer:

a)stratosphere

b)barometer

Q1

a) candle goes of after sometime when it is covered with a jar because for combustion to occur, oxygen is needed. The act of keeping of jar cuts the supply of oxygen and the flame extinguishes. Hope it helps u. Because air is everywhere and it contains gases like carbon dioxide,nitrogen,oxygen etc .

Answer 2

Answer:

a. stratosphere

b. barometer

A candle goes of after sometime when it is covered with a jar because for combustion to occur, oxygen is needed. The act of keeping of jar cuts the supply of oxygen and the flame extinguishes. Hope it helps u. Because air is everywhere and it contains gases like carbon dioxide,nitrogen,oxygen etc