thw answer is C. 2
i do not know why! Sorry!
i just took the test and it was right
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Answer:
Convergent boundaries,over time,a rift valley will form.
Explanation:
The picture shows 2 plates moving apart,and a shallow "valley"is also noticeable.
Mark me brainliest if I helped:D
They correspond due to the fact that certain elements are grouped together based on the number of valence electrons on the outer shell of their electron configuration.
For instance, sulfur (S) has 6 electrons in the outer shell, as it is in the 6th group EXCLUDING transition metals (note, never take these into account, as their charge is always +2; a cation)
Answer:
Explanation:
There are two hypotheses she could test:
A cat's heart rate changes while it is napping.
A cat's heart rate does not change while it is napping.