Answer:
A
Explanation:
<em>The correct option would be </em><em>A.</em>
<u>The presence of ammonia in the atmosphere of primitive earth provided the nitrogen found in the amine groups of amino acid and the nitrogenous bases in DNA. This has been proven through the simulation experiment of the primitive earth's atmosphere by Stanley Miller and Harold Urey.</u>
The water in the primitive atmosphere was formed from the condensation of water vapour from volcanoes that were characterics of the earth's environment while oxygen in itself is not needed for photosynthesis but a by-product of it.
The 4 properties given are physical properties, therefore the ones I'll list are also physical properties of sodium chloride.
These properties may include:
It is white in color
It is hard
It is brittle
It conducts electricity in molten or aqueous state
The dotted red line that cuts through the highest point of the curve signify mean height of the men in the class.
<h3>What is Mean?</h3>
- There are various mean types in mathematics, particularly in statistics.
- Each mean aids in the summary of a particular set of data, frequently serving to assess the overall importance of a given data set.
- The mean difference, or more precisely "difference in means," is a common statistic used to compare the mean values of two groups in clinical trials.
- It calculates the average difference between the experimental intervention's effect on the result and the control. Simply sum up all of your data to determine the mean.
- The sum should then be divided by whichever many numbers you added. Your mean or average score is the outcome.
Learn more about mean here:
brainly.com/question/13451489
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