Ozone is a gas that is quite interesting because of its dual or “two-sided” nature. Ozone high up in the stratosphere naturally protects Earth from the Sun’s harmful ultraviolet light. However, ozone that forms close to the ground is a major air pollutant. This type of ozone can hurt humans and our surrounding environment.
Today, we will focus on the good ozone, which is called stratospheric ozone. You will learn a lot more about the “bad ozone” air pollution near the ground during Lesson Five.
Ozone
What does it mean that ozone is “Good up high, Bad nearby”?
Can you think of another example of something that is good to have in one place, but bad to have somewhere else?
Label the stratosphere, troposphere, and ozone layer in the diagram.
What did you learn about the ozone layer in the video?
In the map that your teacher showed, where was the ozone hole?
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life