Answer:Ultraviolet radiation. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer. UV radiation is made up of three types of rays -- ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC).
Explanation:Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays.
The correct answer is option B, that is, it presents the correct sequence of events in Earth’s history.
The geological time scale signifies towards a framework of chronological dating that relates geological strata with time. It is used by geologists, paleontologists, and other scientists of the Earth to illustrate the relations and timings of incidents that have taken place during Earth's history.
The specific set of alleles an organismhas makes up its genotype. Thesegenes influence the way an organism looks, which is known as itsphenotype. Phenotype is mostly aresult of an organism's genotype, but environment can also influence physical characteristics.
