Question

Choose all the answers that apply.
The atmosphere:
protects the earth from harmful radiation
is made mostly of nitrogen
traps heat from the sun
O can be used to transmit radio signals

Answer 1

A: The atmosphere protects life on earth by shielding it from incoming ultraviolet (UV) radiation.

B: Earth’s atmosphere is made up of approximately 78% nitrogen.

C: The gasses in Earth’s atmosphere will trap the Sun’s heat in a process called the greenhouse effect.