Yes the egyptians prayed to the sun god because they believed he would help them gain good harvest. Hope this helped. :D
There is no ancient Egyptian god Zyopt.
Ceres
Osiris was the usual Ancient Egyptian god of the underworld.
It largely depends upon which ancient Egyptian god - or goddess.
The Egyptian god associated with harvest and eternal life is Osiris. He is revered as the god of the afterlife, resurrection, and fertility, often linked to the agricultural cycles of planting and harvesting. Osiris's death and resurrection symbolize the renewal of life and the annual flooding of the Nile, which brought fertility to the land. His worship was central to ancient Egyptian beliefs about life, death, and the afterlife.
Ptah is the ancient Egyptian god of creation.
Yah is not a recognized Egyptian god in ancient Egyptian mythology. It is possible that you may be referring to Yahweh, the god of the Israelites in the Hebrew Bible. In ancient Egyptian mythology, the god Yahweh does not hold any significance.
The ancient Egyptian deity that was considered the god of the horizon is Aker.
The ancient Egyptian deity that was considered a war god is Anhur.
The bird associated with the ancient Egyptian god Horus is the falcon.
Prayers were said regulary for the Gods at certain times of the year. For example farmers worshipped the God of harvest. Also sacrifices are made as an offering to the God.
Hapi was the ancient Egyptian god which represented the Nile's flood.