Explanation
The best answer is Choice D. Of the four choices, only this one provides evidence to support the idea that there used to be one continent made up of the pieces that are the continents we know today. The fact that two continents seem to fit together like the pieces of a jigsaw puzzle suggests that they were once part of one continent.
Employees at GetWell research labs are analyzing mechanical waves, which require a medium to pass through, and electromagnetic waves, which travel through space. Jose Gonzalez IV is studying electromagnetic waves and their potential, real-world health and medical applications. He records the lengths of the various waves, noting that radio waves are the longest, while Gamma rays are the shortest. When calculating the frequency of the wave, or the number of wavelengths that occur in a distinct amount of time, Jose notes that there is an inverse relationship between the frequency of a wave and its period, which is the time it takes for a single wave to occur.
Wave type | Wave length size | Application |
Radio Waves | Grater than 30cm | Aircraft Naviagtion, TV, AM/FM Radio |
Infrared Waves | 30cm - 1mm | Microwave Ovens, Mobile Phones |
Visible Light | 1mm - 700nm | Remote Controls, Toasters, Night Vision |
X-Rays | 700nm - 400nm | Physical Therapy, Light Bulbs, Photography |
Ultraviolet Light | 400nm - 60 nm | Sanitation, Air Purification, Forgery Detection |
X-Rays |
60nm - \(1 \times 10^{4}\)nm |
Medical Examination, Cancer Treatment |
Gamma Rays | 0.1 nm - \(1 \times 10^{5}\) nm | Cancer Treatment, Food Irradiation |
Based on the information provided, which types of waves have potential medical applications? Choose all that apply.