It would be C - dinoflagellates. have a great day!! :)
<span>Each year, an average person in the United States is exposed to a radiation level of 360 mrem, which is the whole body equivalent dose from the background sources. Most of the radiation is the result from the natural sources. However, this value is also an indication of radiation caused by non-natural sources.</span>
Solar eclipses result from the Moon blocking the Sun relative to the Earth; thus Earth, Moon and Sun all lie on a line. Lunar eclipses work the same way in a different order: Moon, Earth and Sun all on a line. In this case the Earth's shadow hides the Moon from view.
D. HCI is the answer because it’s an inorganic acid composed of only hydrogen and chlorine. When dissolved in water it becomes an acid or a aqueous solution