Question

6 which theories formulated by 20th century scientist albert einstein increased understanding of motion and gravitation?
o special relativity and general relativity
o flat earth and steady state
o law of universal gravitation and laws of motion
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Explanation:

Albert Einstein formulated the Special Relativity in 1905 and General Relativity in 1915, which advanced the understanding of motion and gravitation. The Law of Universal Gravitation and Laws of Motion were by Isaac Newton. Flat - Earth and Steady - State are not Einstein's theories related to motion and gravitation.

Answer:

Special Relativity and General Relativity