Answer:
c. Chemical weathering
Explanation:
One of the famous landmarks in New York City is "The Statue of Liberty." It was built in<em> 1886</em> as a gift to the Americans from France.
The statue is covered with<em> copper sheets</em>, thus, it used to have a brown color. However, over time, the color turned into greenish-blue. This is because<u> the copper sheets underwent chemical weathering</u>. Such process occurred as a result of the reaction of copper with Oxygen in the air and with water. It produced<em> "copper carbonate,"</em> which is<em> greenish-blue</em> in color. Such color was noticeable in<em> </em>1900<em>, </em>but it covered the entire statue in <em>1906.</em>
Explanation:
At the center its weight is zero. Or you can argue by symmetry: if the weight is not zero, in what direction would it act?
Answer:
Rugged and undulating are the two ways which shows that topography effects the population of an area.
Explanation:
Topography has a great effects on the distribution of population. Rugged topography is a type of topography in which the surface is uneven and rocky while undulating topography refers to land which is just like waves having lower and higher points. So both of these topography decreases the population of people because on these lands walking is difficult due to no roads and uneven surface so that's why people settle on the plain areas.
