I think it is D i might be wrong don't know
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.
Learn more about Electromagnetic radiation here: brainly.com/question/18797544
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It is definitely not true that many small rural communities have best transport, so we can reject the option b) and d) together with it.
The best answer is that they don't have mass transit systems (a is the correct answer). It's not true that they can walk everywhere because they can for example be forced to walk to a different town if they need a hospital.
<span> A.) by raising exports, tariffs were beneficial to the economy. </span>tariffs is another way of saying taxes that are given to goods either imported or exported. in the case of the great depression, the more exports and tariffs applied to these products was beneficial to the economy. yet it is open to interpretation whether the tariffs are indeed beneficial or detrimental since they increased the impact of the great depression.
-i hope its right and helps you
