What causes different colors to appear in the sky?

a. the absorption of light by air molecules
b. the reflection of light by bodies of water
c. the greenhouse effect in earth’s atmosphere
d. the scattering and reflection of light by dust particles

Could someone me with number one you

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation