Explanation:
Radio Waves -- The waves in the electromagnetic spectrum that have the longest wavelengths and lowest frequency are called radio waves.
The correct answer should be Inexorable because inexorable means unyielding or unrelenting, which would fit the context here.
I got a lot of chocolate on my birthday today.
Social grants are important because without them many people would not even have enough money to buy food, let alone pay bills or rent or anything similar. In some places like South Africa, the social grants help a third of the population to avoid complete poverty.
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