I think there will be about three correct answers from the list of choices above. Mutations are random, can be beneficial depending on the environment and that it <span>add new genes to the gene pool. Hope this answers the question. Have a nice day.</span>
Answer:
late Carboniferous period
Explanation:
:)
<span>They bloom at night. hope i helped </span>
<h2><u>
Air particles at different layers of the atmosphere</u></h2>
Earth's atmosphere has four layers namely Troposphere, Stratosphere , Mesosphere and Thermosphere where troposphere is nearest to the earth and thermosphere is farthest and temperature increases with increase in altitude of the layer of atmosphere. So, temperature is highest in thermosphere and lowest in troposphere. so the ascending order of temperature is Troposphere < Stratosphere < Mesosphere < Thermosphere.
Dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and a small amounts of some other gases by volume. It also contains a varied amount of water vapor, around 1% at sea level, on average and 0.4% over the entire atmosphere.
