The answer is A:<span> Metamorphic rocks</span><span> may display two different grain sizes.</span> :)
B:2 it is measured by the crest of the wave or as I say the top of the wave
<u>Answer</u>:
<em>Annual precipitation and average temperature
</em>
<u>Explanation:</u>
Weather is referred as the temperature and precipitation recorded daily but climate is the <em>average temperature, precipitation, atmospheric pressure, wind and humidity recorded annually</em>.
Climate is also meant by the average weather of a place. The elements that are commonly found in <em>description of the climate is annual precipitation and average temperature of a place or region</em>.
Precipitation is defined as product obtained by the <em>condensation of the water vapour present in atmosphere</em> and which falls under the <em>action of gravity. </em>
Lactase refers to an enzyme that can dissociate lactose sugar into glucose and galactose. This enzyme plays an important role in the digestion of milk that comprises high lactose sugar. In case, if a mutation occurs in the gene codon of lactase, then two possibilities can take place. These are as follows:
1. Loss of mutation: In this case, the person becomes lactose intolerant because of mutation in lactase gene codon. Due to this, there is low mRNA expression and thus low production of the enzyme lactase. This is also known as lactase non-persistent phenotype.
2. Gain in mutation: In this case, the person gain an increase in mRNA expression of the lactase gene, thus more production of lactase takes place than usual. This kind of individual exhibits lactase persistent phenotype.
