<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.
<span>The answer is: at the level of population. A population is a group of organisms of the same species in an area. Here, we have a group of butterflies of the same species laying eggs on milkweed plants. Therefore, butterflies laying their eggs on milkweed plants occurs at the level of population. </span>
Answer:
enzymes are organic catalyst, the speed up the rate of biochemical processes
Explanation:
enzymes are protein in nature
enzymes are not consumed during the biochemical reaction
enzymes are specific in action
they require optimal temperature for their action.
