Answer:
The correct answer is: (A).
Explanation:
- In the question, it is mentioned that the algae can grow under the conditions of "enough sunlight" and "enough nutrients".
- Sunlight reaches the algae, by first falling on the surface made up of ice and snow and then refracting from there into the top layer of the ice where the algae grows.
- However, the capability of both snow and ice to reflect sunlight is far more than that of refracting sunlight.
- Therefore, the amount of light received by the algae is similar in absence or presence of the layer of snow on the top layer of ice.
- However, on deposition of snow on the layer of the ice, the weight of the ice increases and it sinks below into sea water.
- This allows more nutrient rich sea water to percolate into the ice and reach the algae.
- The algae receive more nutrients from the sea water and hence is capable undergoing better metabolism and growth. 
- Hence, more algae are produced under such a situation.
 
        
             
        
        
        
Fatty acids
fatty acid synthesis is the formation of fatty acid from acetyl coa and NADPH with help of the enzyme known as fatty acid synthases. This reaction occurs inside the cytoplasm of the cell. The fatty acids that were formed were derived from carbohydrates via glycolytic pathway. This pathway can also give glycerol which is different form fatty acids
        
             
        
        
        
The correct answer of the question above is the first statement. In anaphase I, homologous pairs are separated but sister chromatids stay joined together. It is <span>best statement that describes the major difference between anaphase of mitosis and anaphase I of meiosis.</span>
        
             
        
        
        
Grinding pepper is not an example of a chemical change. 
        
             
        
        
        
The primary benefit of folic acid is that it helps in preventing neural tube defects. Folic acid also known as Vitamin B9 are used as a supplementary vitamins taaken by many pregnant mother in order to develop the baby without deformities. Lacking of Folic acid causes neural tube defects define as an irregularities of the brain and spinal cord during the first week of prenancy