Answer:
time taken for 25% Phlebotinum and 75% Dilithium is 168 million years
Explanation:
radioactive isotope of Phlebotinum decays into Dilithium.
time taken to half life takes = 42 million years
half life means that the Phlebotinum is 50% and Dilithium is also 50%
and now it is given that Phlebotinum is 25% and Dilithium is 75%
hence this condition will come after two half lives.
for one half life it takes 42 million years
and for second half life time becomes 4 times of first half life
time for 25% Phlebotinum and 75% Dilithium is = 4 × 42
= 168 million years.
hence time taken for 25% Phlebotinum and 75% Dilithium is 168 million years
The answer to this question is true.
Yeah, it is the most widely accepted theory about the origin of Universe. If you are interested in it, I will suggest reading “A Brief History of Time”, by Stephen Hawking.
<span>More than half of Africa's source of energy comes from coal. Its coal production and waste led to several environmental problems like wildfire and diseases. In one mine leak incident in Africa, last 1953 brought poison on the water supply killed thousands of marine life.</span>
