All of these are compounds except oxygen because a compound is two or more different elements bonded together.
Answer: B) It presents the correct sequence of events in Earth’s history.
Explanation: edge 2021
1. She would want a balanced force so she doesn't fall but, well, keep her balance.
2. Frictional force because when an object slows down it's because a higher amount of friction is acting on it.
3. It would be magnitude and direction because is like the size of the object and they need to know how much force it will take to move it.
4. Is the same as 3...
5. A push and a pull are a force.
I hope this helps!
Answer:
heat energy is released into the surrounding
Answer:
C. because the 4s orbital is at a lower energy level
