By comparing the position of the sun and the shadows cast at noon on the summer solstice in two different cities, Eratosthenes was the first to determine that Earth was round. the distance between the two cities. the distance from Earth to the sun. the size of Earth.

The correct statement is ' the Size of the Earth'.

Explanation:

Most Greek scholars soo many years agreed that the earth was shperical in shape but never knew the size of the Earth.

Eratosthenes was a man of many talents, he was a geographer, a mathematician, an astronomer and a historian. With the expanse of knowledge he had, he compared the position of the sun and the shadows cast at noon on the summer solstice in two different cities. With reasonable accuracy, he was able to determine the shperical size of the earth. He computed this by using simple geometry and trigonometry and by recognizing Earth as a sphere in space.

well, you see. the answer to your question is quite simple. the thing that is big, powerful, and over 9,000 is your mom.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.