gamma radiation is both a type of nuclear radiation and electromagnetic radiation.
Radiation has both electric and magnetic fields and travels in waves. It comes from natural and man-made sources. The intensity of electromagnetic radiation varies from low energy to high energy. There are radio waves, microwaves, infrared rays, visible rays, ultraviolet rays, X-rays, and gamma rays.
Electromagnetic radiation consists of an electric field (E) of varying strength perpendicular to the direction of propagation of the radiation and a magnetic field (M) perpendicular to the electric field. Both fields move at the speed of light (c).
Electromagnetic radiation occurs when atoms absorb energy. The absorbed energy causes one or more electrons to change positions within the atom. Electromagnetic waves are generated when electrons return to their original positions.
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Answer:
The best answer to the question: If the ice in Antartica melted, the sea level would rise about:___, would be: 200 feet.
Explanation:
According to research and data found, the possibility of either of the poles completely melting off is practically nil. The planet has not gone through just one, but several ocassions in which temperatures in the atmosphere have risen due to greenhouse gases, but in all of them, after a period of time, the balance was restored. And in none of those ocassions, did the poles melt completely. In fact, according to several geologists whose research has been published, the Earth has natural mechanisms of defense that would not permit such a thing to happen. However, some of them have asked themselves the hypothetical question of what would happen, especially to sea levels, if just one of the two poles, Antartica, melted, and the answers they have gotten have been: they would rise over 200 feet, and they would most likely cause coastal cities, and various islands, to disappear under water.
The correct answer is the plow. When the plow was invented agriculture was made much easier which enabled people to settle around and make surplus of food. This enabled them to trade with others and increase the size of the cities and the rest is history.
