All of the above its all right
Answer:
Option (3)
Explanation:
The contour lines are lines of equal elevation, from the mean sea level. This contour lines are often shown in the topographic maps with lines and are separated from one another by a fixed vertical distance. These contour lines never intersect each other. In a topographic map, closely spaced contours depicts a steeper slope, whereas widely spaced contour lines depicts a gentle slope.
Thus, the correct answer is option (3).
Inca ruins civilization in Peru country
The answer is D, noble gases are stable.
