What is the first 20 element​

1. H - Hydrogen

2. He - Helium

3. Li - Lithium

4. Be - Beryllium

5. B - Boron

6. C - Carbon

7. N - Nitrogen

8. O - Oxygen

9. F - Fluorine

10. Ne - Neon

11. Na - Sodium

12. Mg - Magnesium

13. Al - Aluminum

14. Si - Silicon

15. P - Phosphorus

16. S - Sulfur

17. Cl - Chlorine

18. Ar - Argon

19. K - Potassium

20. Ca - Calcium

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

c.more precipitation,but only when emission levels.