Answer to Question 1
Answer: As P waves pass through layers of differing densities, the wave paths will refract and thus change the direction that the waves are traveling, which can result in some areas not receiving P waves. The shadow will form between 100 and 140 degrees.
Answer to Question 2
Answer:
1. Heat conducts out of the core into the mantle, making the material in the outermost core cool, solidify, and sink.
2. Crystallization of solid iron near the bottom of the core that adheres to the inner core leaves low-density fluids behind. These rise toward the mantle, resulting in chemical convection.
3. Radioactive isotopes decay, providing additional heat to drive thermal convection.
Examples of variation in leaf form.
Covalent bonds form by the sharing of electrons
Principal Characteristics of REM and Slow-Wave Sleep
The patient's signature on the informed consent form indicates that the patient understands the
The I-9 form Cont
Please fully explain the answer with steps