Chemistry, 01.08.2019 13:00 rileyw252

Plz i need i will give u brainlest plz what do active solar heat systems have that passive systems do not have? a. fans and pumps b. tubes for conducing heat c. areas to collect sunlight d. solar collectors

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Plz i need i will give u brainlest plz what do active solar heat systems have that passive system...