The convection current in the atmosphere is best explained as the process by which hot air expands and rises, becoming cooler and denser, then falling again in a continuous process.
Heat transfer by convection involves the transfer of heat by the actual movement of the heated molecules from the hot parts to the cooler parts of a fluid.
The continuous movement of hot air or liquid from bottom to the top and cold liquid or air from the top to the bottom is known as convection current.
Thus, we can conclude that convection current in the atmosphere is best explained as the process by which hot air expands and rises, becoming cooler and denser, then falling again in a continuous process.
Learn more here: brainly.com/question/20295382
Answer:
option C= hydrolysis and break down
Explanation:
All other three pairs are correct coupling of each others.
Option A= dehydration synthesis and hydrolysis
Dehydration synthesis:
In dehydration synthesis monomers combine through the covalent bonds and form large molecules. The large molecules are called polymers. The water as a byproduct also released when monomers joints together.
Hydrolysis:
In hydrolysis the polymers are break down into monomers by using water molecules. The catalysts are also required in this process.
Option B= Catabolic and Anabolic
Anabolic:
In this process smaller molecules combine to gather to form large complex molecules by using energy.
For example simple glucose molecules join together to form large disaccharides.
Catabolic:
It is the break down of large complex molecules to the smaller molecules.
For example during cellular respiration sugar molecules break down and generate energy.
Option D= Break down and synthesis
The break down and synthesis are also reverse pair of each others. The synthesis involve the formation of molecules form smaller component while the break down involve destruction of molecules into smaller units.
Answer: The percent yield for the 
is, 86.7 %
Explanation : Given,
Moles of 
= 2.36 mol
Moles of = 6.14 mol
First we have to calculate the moles of
The balanced chemical equation is:
From the reaction, we conclude that
As, 2 moles of react to give 6 moles of
So, 2.36 moles of react to give 
mole of
Now we have to calculate the percent yield for the .
Experimental yield = 6.14 moles
Theoretical yield = 7.08 moles
Now put all the given values in this formula, we get:
Therefore, the percent yield for the is, 86.7 %
