Seven continents are in this world
Answer:
78 percent - nitrogen
21percent- oxygen
absorbs ultraviolet-ozonosphere
atmospheric weather-stratosphere
starts seven miles -troposphere
layer composed 0f layers- thermosphere
important fr radio wave-ionosphrere
trapping of heat- green house effect
Answer:
: 2, 1 is 1/3 of the whole and 2 is 2/3 of the whole.
Explanation: