The answer is <u>C; biosphere and lithosphere</u>.
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<span>the spiral arms of the milky way was made of: D. younger stars and gaseous nebulae
The spiral arms of the mily way was organized into four spiral arms, and since it was made of younger stars and gaseous nebulae, Spiral arms typically contain a higher density of interstellar gas and dust than the Galactic average as well as a greater concentration of star formation</span>
Earth's atmosphere has a series of layers, each with its own specific traits. Moving upward from ground level, these layers are named the troposphere, stratosphere, mesosphere, thermosphere and exosphere. Hope this helped.
Answer:
i think the birds have the same side affect as us hope this helps
Explanation: