If there were no nitrogen compounds in the soil, the most immediate effect on plants growing in that soil would be difficulty in synthesizing. . .

Amino acids and Proteins

Explanation:

Plants as well as other living organisms require certain nutrients for their growth and development. One major inorganic nutrient that is needed by plants is NITROGEN, obtained in its compound form called nitrates. Nitrogen is necessary component for building amino acids and proteins in the cell because nitrogen is an integral element in the structure of AMINO ACIDS. Nitrogen makes up the amine functional group of amino acids (NH2).

Hence, If there were no nitrogen compounds in the soil, the most immediate effect on plants growing in that soil would be difficulty in synthesizing AMINO ACIDS and subsequently PROTEINS.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.