Office Bargains sells 20 pens for $8.50 or 30 pens for $12.50. Which of the following statements is correct? OA) Buying 20 pens and buying 30 pens is equally as good because the unit prices are the same. OB) The 20-count offer would be a better buy because it has the lower unit price. O c) The 30-count offer would be a better buy because it has the lower unit price. O D) The 20-count offer would be a better buy because the cost per pen is less than the cost per pen with the 30-count

answer:  

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step-by-step explanation: easy

step-by-step explanation:

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answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun