What do scientists use to study precambrian time? fossils from algae and other plants fossils from tiny microscopic animals ore from eroded and deformed rocks ore mined from deep inside the crust?

Ore from eroded and deformed rocks.

Explanation:

Precambrian is the name of the largest division in the earth's geological time. Corresponds to the set of Proterozoic, Archean and Hadean eons. It predates the Fanerozoic eon. Precambrian covers 90% of the earth's geological record. Only at the end of this peril did multicellular organisms evolve and sexual division developed. Also at the end of Precambrian conditions were created for the explosion of life recorded at the beginning of the Eero Fanerozoic.

These reasons make this period so important to science and are the basis of countless research and studies that seek to understand how this period contributes and influences life on our planet. When scientists want to do some study based on this period, they use ore from eroded and deformed rocks that may have been generated at that time.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.