The earth's surface features are constantly changing in a process known as weathering and erosion. Weathering would happen when rocks would break physically like frost shattering while erosion happens when sediments and rocks are moved from one place to another by agents like water, gravity, wind and ice. These two occurrences are the cause of the constant change of the Earth's surface.<span />
A commodity that someone would invest in would be tea, coffee, and wine. Some of the more popular items people usually think of as a commodity.
The Space Shuttle takes off like a rocket, orbits<span> Earth like a spaceship, and lands like an airplane.</span>