Answer:
Due to the known fact that certain animal ect lived on certain country/continents due to climate water type ect when fossils of various animal where found in unusual parts of the earth the theory came that all the continent where joined together due to fossil and rock types being found on continents in which would be impossible to reach if not joined together in the beginning
Explanation:
I
Answer:
Plants wilt when the turgor turns to zero. From diminished water in cells. The rate of water being lost is greater then the water being absorbed.
Something like this. NOT EXACTLY THIS this is just an example.
I didn't know anything about this topic but I looked it up. For the other words I would look up the other words and see what they have to do with plants withering.
The answer is Lead. Because it’s on quiz let
pH = 2.1
Let 
resembles the acid; as a weak acid (a small value of 
) 
would partially dissociate to produce protons 
and 
, its conjugate base. Let the final proton concentration (i.e., ![[H^{+}]](https://tex.z-dn.net/?f=%20%5BH%5E%7B%2B%7D%5D%20)
) be 
. (Apparently 
) Construct the following RICE table:
By definition, (all concentrations are under equilibrium condition)
![\left\begin{array}{ccc}K_{a}&=&[H^{+}] \cdot [A^{-}] / [HA]\\&=&x^{2} /(0.14 - x)\end{array}\right](https://tex.z-dn.net/?f=%20%20%5Cleft%5Cbegin%7Barray%7D%7Bccc%7DK_%7Ba%7D%26%3D%26%5BH%5E%7B%2B%7D%5D%20%5Ccdot%20%5BA%5E%7B-%7D%5D%20%2F%20%5BHA%5D%5C%5C%26%3D%26x%5E%7B2%7D%20%2F%280.14%20-%20x%29%5Cend%7Barray%7D%5Cright%20)
It is given that
Equating and simplifying the two expressions gives a quadratic equation; solve the equation for gives:
The pH of a solutions equals the opposite of the logarithm of its proton concentration to base 10; thus for this particular solution
![\text{pH} = -\text{ln(}[H^{+}]\text{)} / \text{ln(}10\text{)} = 2.1](https://tex.z-dn.net/?f=%20%5Ctext%7BpH%7D%20%3D%20-%5Ctext%7Bln%28%7D%5BH%5E%7B%2B%7D%5D%5Ctext%7B%29%7D%20%2F%20%5Ctext%7Bln%28%7D10%5Ctext%7B%29%7D%20%3D%202.1%20)
