Question

1. which scientist improved upon the telescope? copernicus leonardo da vinci newton galileo

Explanation:

Galileo made significant improvements to the telescope. He used it for astronomical observations, which greatly advanced the field of astronomy. Copernicus proposed the heliocentric model, Leonardo da Vinci was a polymath with wide - ranging interests but not known for telescope improvements, and Newton made contributions in mechanics and optics but not in improving the early telescope in the way Galileo did.

Answer:

D. Galileo