I think it’s A blocking pathogen from entering block
Answer:
Infrasound
Explanation:
Infrasound, sometimes referred to as low frequency sound, describes sound waves with a frequency below the lower limit of audibility.
Answer:
The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. ... At convergent boundaries, plates collide with one another.