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Salsk061 [2.6K]
4 years ago
7

The chemical that promotes phototropism is _____.

Biology
1 answer:
grigory [225]4 years ago
4 0
Auxin.
It's plant hormone
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Of all of the solar technologies, solar thermal systems are by far the most straightforward and the best developed. Architectural Designs are being developed to conserve solar energy by taking advantage of the site and building materials which in turn transform a building into a solar collector. There are many mechanical moving parts within an active solar thermal system.

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