Question

what is stratosphere and hemisphere​

Answer 1

Answer:

stratosphere: the layer of the earth's atmosphere above the troposphere extending about 50 km above the Earth surface

Answer 2

$\huge\colorbox{skyblue}{Answer}$

1. The stratosphere is a layer of Earth's atmosphere. It is the second layer of the atmosphere as you go upward. ... Ozone, an unusual type of oxygen molecule that is relatively abundant in the stratosphere, heats this layer as it absorbs energy from incoming ultraviolet radiation from the Sun.
2. Any circle drawn around the Earth divides it into two equal halves called hemispheres. There are generally considered to be four hemispheres: Northern, Southern, Eastern, and Western. The Equator, or line of 0 degrees latitude, divides the Earth into the Northern and Southern hemispheres.