Radio waves are electromagnetic waves and as such travel at the speed of light. Waves emitted a century ago would be 100 hundred light years away. A light year is the distance light travels in one year. In one year light travels about 5.9 trillion miles. therefore the waves traveled about 590 trillion miles in a century.
Knowledge of a) physical geography provides the means to identify and describe natural features of the earth, icluding landforms, water, vegetation and climate.
Answer:
Explanation:
a) ¿Qué error encuentra en la imagen?
Hay una redundancia
b) ¿Por qué está mal decir subir para arriba?
Se trata de un pleonasmo.
Answer:
True
Explanation:
While the business is at it's peak, profit may significantly drop due to technical problems or a severe lag of customers that buy up the product. However, Recessions during peak phase generally bounce back really quickly, returning to the peak amount.
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