Most South American countries gained independence between 1810 and 1830.
The answer is C. Galileo made important improvements to both instruments.
Some people believe that Galileo was the first person to build a telescope.
This is not true, but he was the first person to publish his observations of astronomical objects through a telescope. He discovered that the Milky Way is made of many stars. He discovered that the Moon has hills.
He found four moons around Jupiter.
Those moons are now called the Galilean moons. He discovered sunspots, which are dark areas of the Sun. He saw that the planet Venus has light and dark phases just like the Moon. This helped people to know that the Sun is at the centre of the Solar System, as Nicholas Copernicus had said.
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Hey!
The great depression was a huge stock market crash and caused very high levels of unemployment. Therefore, the third answer is correct.
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They land and what they had to offer
