What role does amaterasu have in fertility?

Her role was to ensure light brightens the world, and  make the rice fields fertile.

Explanation:

Amaterasu was goddess of fertility and the sun. she was  one of the most powerful figures in Japanese mythology and in the religion referred to as Shinto.

According to legend, she is the first ancestor of Japan's Imperial family.

Her role was to make light illuminated the world, and the rice fields remained fertile.  Amaterasu made humans weave cloth  and  plant rice.

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