Weather can be predicted only as probable, not definite because the daily weather conditions depends on winds and storms.
It is common observation that weather forecasts are often given as a probability and never in definite terms.
This is because, the weather condition at anytime depends on the temperature of the earth's atmosphere which causes air masses to move leading to wind.
The temperature of the earth's atmosphere changes frequently hence weather conditions also change frequently.
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Answer: He did not discuss about any of these.
Explanation: Dalton proposed some of the postulates for his atomic theory. They are:
1) Matter is made up of atoms which are not divisible.
2) Atoms of different elements combine in a fixed ratio to form compounds.
3) The atomic properties of given element are same including mass. This states that all the atoms of an element have same mass but the atoms of different elements have different masses.
4) No atoms are either created or destroyed during a chemical reaction.
5) Atoms of an element are identical in mass, size and other chemical and physical properties.
As it is visible from the postulates, he only discussed only about the atoms but not subatomic particles or isotopes.
Answer:
The tissue cells
Explanation:
I think you mean this

It all starts from Carbondioxide. This Carbondioxide is dissolved in the blood and taken by red blood cell and converted into carbonic acid. It then dissociates to form a bicarbonate ion
and a hydrogen ion 
This <--> means that the whole process is reversible. It is a buffer system to maintain the pH in the blood and duodenum. And also to support proper metabolic function.