When the hurricane touch the ground
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.
#10 is incorrect, the correct answer is Korea.
#11 is incorrect, the correct answer is Japan.
#13 is incorrect, the correct answer is Communist.
#14 is incorrect, the correct answer is Collective Farms.
#15 is incorrect, the correct answer is Ganges River.
As far as I know, all other answers are correct.
Feel free to ask for explainations.
Answer:
<h2>Human activities contribute to climate change by causing changes in Earth's atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. ... Changing the atmospheric abundance or properties of these gases and particles can lead to a warming or cooling of the climate system.</h2>
