The elements listed in the choices are radioactive materials. These materials are very unstable because of the high neutron-to-proton ratio in the nucleus. Because of this, they spontaneously undergo nuclear reactions by giving off sub-particles in order to lower the ratio. They emit radiation in the form of alpha, beta or gamma.
Half-life is the length of time it needs to completely react half of the original amount. For example, it would take Bismuth 60.5 seconds to use up half of its amount. Therefore, the lower the half-life the faster the reaction is and the lesser the residual amount will be. With that being said, the answer would be Bismuth because it only takes seconds.
Answer & Explanation:
People depend on the environment for fishing. Many Greenlanders fish in the icy cold water. ... They adapt to the environment by wearing clothes that suit the temperatures and the seasons. Because Greenland has an arctic climate, people need to wear lots of layers in the winter as well as big coats or boots.
I believe the answer is A, but Im not 100% I hope this helps!
The sediments that is composed of mineral grains that are
eroded from the continental rocks is called terrigenous. The terrigenous
sediments are obtained from the erosion of rocks that occurs on land and that
they are being stored in the submarine canyons.
Sedimentary rock can tell us about animals that used to live there, weather, droughts, acidity in water and air, and plant life that used to exist. please mark brainliest!!!
