Try C or B. Let me know how it goes!
Answer:
Chemical composition
Explanation:
Sometimes Earth's layers are called crust mantle, and core. These are the names of Earth's layers based on their Chemical composition.
Answer:
6=403.42
10= 220226.46
9= 8103.0
A= 1
6= 403.423
7= 1096.663
5= 148.41
Explanation:
to solve this use the maths knowledge.
Both Radioactive dating of rocks retrieved from the world and Comparing cratering rates on one world to those on another.
Geologists can find the relative age of impact craters on a world because
the ones on top must be younger.
Scientists know the history of Earth's magnetic field because the magnetic field gets frozen into rocks, and plate tectonics spreads them out.
Hope it helps
B rift valley
Explanation:
Divergent boundaries within continents initially produce rifts, which eventually become rift valleys. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges.