The Answer is second option (Tombouctou).
Answer:
A b C
Explanation:
Economic push factors of immigration include poverty, overpopulation, and lack of jobs.
Answer:
Object A
Explanation:
The less mass an object has, the less force is needed to move it, so the object with less mass will speed up more with the same force applied to it.
Th correct answer is letter A. Echo sounding is very useful for depth profiles where SONAR is used to determine the depth of water through the transmission of sound pulses. It is calculated by checking the interval between the mission and the pulse that is recorded within the SONAR device.