Answer:
Option (4)
Explanation:
Seismic P and S waves are generated during an earthquake that has the potential to propagate through the interior of the earth. P waves are also known as the primary waves and they move in a compression and extension way in their direction of propagation. S waves are shear waves. This P waves travel faster than the S waves and can travel in both solid as well as in liquid. Whereas the S wave can travel only through solids. They get absorbed when they reach the core-mantle boundary. These two waves are helpful in determining the epicenter of an earthquake by recording the arrival of these waves.
Hence, the correct answer is option (4).
Answer: The answer would be B.
Explanation: Lines of longitude are imaginary lines in Geography that run vertically (up and down). Since these lines are travelling from North to South, the answer must be B.
Answer:
A vertebrate is an animal or species distinguished by its possession of a backbone or spinal column. Vertebrates can be insects, fish, mammals, birds, reptiles, and also amphibians.
Hope this helps :)
Nation states are difficult to create because of colonies ((tell me if u need to know why because I can help with that))
It would sometimes signify the unity of two separate kingdoms