Answer:
true
After two half-lives, there is no longer any of the original radioactive material remaining.
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True
Because the glacier will melt as a result and in no time the glaciers will have vanished from the mountains. There will be no more runoff.It is one of the major evidence of the effect of pollution and global warming.
Answer:
Albedo
is a measure of how much light that hits a surface is reflected without being absorbed.
Answer:
1 hour
Explanation:
24 hours = 360 degrees
1 hour = 360 ÷ 24 = 15 degrees
