1s orbital
Explanation:
The electron has to go into the first energy level, in the 1s orbital. Helium, with two protons, will have two electrons. These are placed one at a time into the 1s orbital. This makes helium a very contented atom.
A tornado is formed by two rocks hitting together under the ground which makes the ground shake.
It is soil after wind for example wind storm causes to soil erosion
Both plants and animals have these. It is a eukaryotic cell.
Answer:
In my opinion ...it is option A:)
