Which of the following statements is true?

both prokaryotic and eukaryotic organisms can have one or more cells.
prokaryotic organisms are always unicellular, but eukaryotic organisms are always multicellular.
prokaryotic organisms are always unicellular, but eukaryotic organisms can be either unicellular or multicellular.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

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.