Water exists as a solid at or below 0 degree Celsius.
At 0 degree Celsius, water can go through a phase change, either freezing or melting, depending whether energy is given or taken away. If the temperature is below 0, water should exist as solid as the temperature is lower than its melting point. If the temperature is right at 0 degree, the water can partially be solid and liquid at the same time, during phase change.
Therefore, water exists as solid at or below 0 degree Celsius.
Answer:
Through the photolysis of water molecules
Explanation:
<em>When the electrons in photosystem II gets excited, released and travel down to the electron transport chain, the electrons are replaced by the electron released by the cleavage/photolysis of water.</em>
<em>Water molecule is cleaved resulting in the formation of hydrogen ion, oxygen gas and electrons. The electrons then replace those lost by photosystem II.</em>
The answer is B. It is the only one where each element has the same number of molecules on each side.
The correct answer for this question is 'Mouth, Stomach, Small Intestine'.
what is Digestion?
Digestion is the process of breakdown of large insoluble food molecules into small water soluble molecules for absorption is called as digestion
The digestion of Carbohydrates usually takes place in small intestine but the digestion process starts in the mouth by the help of salivary amylase present in the saliva. The complete digestion takes place in small intestine with the help of pancreatic enzymes called α-glucosidase and amylase
The protein digestion takes place in the stomach as the Ph conditions are favourable for the digestion of proteins the stomach walls release pepsin enzyme for the synthesis of proteins the protein digestion also takes place in small intestine.
Lipids are mostly digested in the small intestines by the help of bile and pancreatic lipases the lipids get broken down to fatty acids and monoglycerides for easier absorption this process of breaking down fats is called as Emulsification
Learn more about Digestion by clicking here :
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Answer:
In this, the controlled variables are stirring and type of sugar. As more stirring might elevate the amount of sugar that dissolves, and different kind of sugars might dissolve in distinct concentrations. So, in order to make sure a fair test, there is a need to keep these variables similar for each cup of water.
Explanation:
