Answer:
2.62 years
Explanation:
The half life of a material is the time taken for half of the number of radioactive atoms in a radioactive material to remain.
If a radioactive material is cut into pieces, each piece has the same half life as the whole material.
Hence, if Strontium-147 is cut into pieces, each piece will have a half life of 2.62 years, just as the whole material.
Answer:
yes,
Explanation:
because people need enough water for them to live and also water is used by many uses like washing
Answer:
Earths orbit
Explanation:
the earths gravity is very strong, which keeps molecules from drifting into space.
Warm and cold fronts are associated with Low pressure systems!
