I would say the answer is B
Answer:
All of these are correct.
Explanation:
Immune system, reproductive system and nervous system are adversely affected by the contact of highly toxic chemicals because toxic chemicals have materials which is harmful for the cells that the cause of cell death or damaged the structure of the cell due to which the cell can't perform its function efficiently. All the system i.e. Immune system, reproductive system and nervous system are made up of cells so if the cells are damaged by these toxic chemicals the body systems are also negatively affected.
The correct answer to this question is this one: "D. Brown algae." Phosphorescence is a phenomenon associated with this algal division that is called the Brown algae. It is also defined as the <span>light emitted by a substance without combustion or perceptible heat.</span>
Amethyst is a purple variety of quartz (SiO2<span>) and is colored </span>violet<span> due to irradiation, iron impurities (in some cases in conjunction with transition element impurities), and the presence of trace elements, hence results in complex crystal lattice substitutions.
I hope this helps you and have a great rest of the day! :-)</span>
