How are weathering and erosion the same? Both move sediment from one place to another. Both break down rocks into smaller pieces. Both change Earth's surface. Both leave sediment in new places.

Both break down rocks into smaller pieces.

Explanation:

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.