The decay product is Radon-222 gas
Scientists currently monitor underground movements, such as earthquakes and nuclear tests, using seismometers – instruments that measure the motion of those events at the Earth's surface.
True vocal cords is the answer <span>ʕ•ᴥ•ʔ</span>
Answer: trite a hypothesis
Explanation:
The basic idea of a hypothesis is that there is no pre-determined outcome. For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.