Well too much oxygen can kill humans which is one. And 2 If the whole atmosphere was oxygen then things will burn easily.
A land breeze occurs during the spring because the air above the land is a greater pressure
Answer: e. 2.5 ml
Explanation:
According to the dilution law,

where,
= concentration of stock solution = 20X
= volume of stock solution = ?
= concentration of required solution= 1X
= volume of required solution= 50 ml


Thus 2.5 ml much of a 20X tricaine stock solution is needed to dilute in order to make your solution.
The answer was Carbon Dioxide
I hope that helps you
What is the difference between a cell plate formation and a cleavage furrowformation? Cell plate formation occurs during cell division in plants whereascleavage furrow form during celldivision in animal cells. Cell plate andcleavage furrow appears in the middle of cell.