Answer:
Weathering is the breaking down of rock
Explanation:
Pls mark it as brainlest
Threatened species are species <span>which are vulnerable to endangerment in the near future.</span>
Mars<span> was </span>discovered<span> by visual observation without instruments. The first mention of observations of </span>Mars<span> occurred in ancient Egyptian records dating back thousands of years. In 1610, Galileo Galilei was the first person to observe </span>Mars<span> through a telescope. hope that helped</span>