Answer: there are no mistakes that I've noticed and if you wrote that then good job.
Explanation:
Answer:
Option C = Ozone
Explanation:
The Percentage of given gases in atmosphere:
Oxygen = O₂ = 20.95 %
Nitrogen = N₂ = 78.08%
Argon = Ar = 0.93%
Ozone = O₃ = 0.000004%
Nitrogen is most abundant gas in atmosphere while oxygen is second most abundant gas. The nitrogen and oxygen are present in diatomic form such as O₂ and N₂.
Water vapors are also present but the percentage vary according to location. In hot humid areas the percentage of water is 0- 4% and it is third abundant gas.
The percentage of other gases in atmosphere are given below:
CO₂ = 0.0360%
Ne = 0.0018%
He = 0.0005%
CH₄ = 0.00017 %
N₂O = 0.0003%
H₂ = 0.00005%
Penguins belong to kingdom Animalia; phylum Chordata; class Aves.
They are considered as birds that are flightless. They belong to the aquatic group; they supposed to have wings but it had evolved into flippers and they have webbed feet.
<span>When an atom gains or loses an electron it's called an ion. Ions have a net positive or negative electrical charge. If an atom loses electrons, it has a net positive charge . If an atom gains electrons, it has a net negative charge and is known as an anion..</span>
The external oblique is a thin sheet of muscle reaching from the ventral side around to the center of the back. It is most apparent on the sides of the abdomen.
