There are various ways, you can recycle or the use of hydroelectricity. Hydroelectricity is energy of water turning turbines or wheels in a dam. There is also air power through windmills. <span />
Apples and pumpkins are the natural vegetation
Answer:
A.
Explanation:
Sign changing means that each value went from positive to negative.
A is a 180 degree rotation around the origin, the answer would be A.
B doesn't change the sign for neither x nor y.
C changes the sign for y, but not x.
D changes the sign for x, but not y.
The Grand Canyon is constantly being slowly eroded by the rive that flows within it, and scientist have found evidence that suggest it was cut within the last 4 million years.
