Answer:valley
Explanation:Fold mountains are created where two or more of Earth's tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. Fold mountains are created through a process called orogeny.
D pretty sure The Gulf of Mexico (Spanish: Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba.
I believe it is C, The inner core produces electric currents that are believed to cause the magnetic field.
X=2
6x+13=16x-7
-6x -6x
————————
13=10x-7
+7 +7
————————
20=10x
—- ——
10 10
_____________
X= 2