Answer:
1 is a
2 is b
3 is d
4 is c
Step-by-step explanation:
these are called contour lines and they measure height so theres a line for example every ten metres. if the lines are very close together the area must be steep. if the lines are rounded the area is rounded. if there is a circle in the middle with a wide gap there is a flat top. if there are two separate shaped in the middle there must be 2 peaks