Russia has the most landmass:
Russia = 6.6 MILLION square miles
Ukraine = <span>233,000 square miles
</span>Belarus = <span>80,000 square miles
Poland = 121,000 square miles
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The ratio of parent to daughter atoms after two half-lives is therefore 1:3 (one-quarter to three-quarters).
Answer:
B. 42; 48
Explanation:
sin x = cos (90-x)
eg sin 42 = cos(90-42) = cos 48
Answer:
a very powerful and influential nation (used especially with reference to the US and the former Soviet Union when these were perceived as the two most powerful nations in the world).