One of the most difficult solar energy design problems to solve is: how to collect the sunlight how to transform sunlight into heat storing the heat energy difficulty in using the energy

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.

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explanation:

the answer is b. glad to .

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.