Put these greenhouse effect events in order, starting with light's origin. - Incident infrared radiation is blocked.
- Earth radiates infrared radiation.
- Visible and ultraviolet radiation heat Earth.
- Infrared radiation is blocked and heats Earth.

1. Incident infrared radiation is blocked

2. Visible and ultraviolet light radiation heats earth

3. Earth radiates infrared radiation

4.Infared radiation is blocked and heats earth

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multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.