Answer:
Fish are aquatic animals who have gills.
Fish are cold blooded and scaly skinned.
Explanation:
Earth's Second Atmosphere The second atmosphere, which was the first to stay with the planet, formed from volcanic outgassing and comet ices. This atmosphere had lots of water vapor, carbon dioxide, nitrogen, and methane but almost no oxygen.
The answer is 'share certain features'
Answer:
A rainbow is caused by sunlight and atmospheric conditions.
