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
Answer:
<h2><em><u>B</u></em><em><u>.</u></em><em><u> </u></em><em><u>Mercury</u></em></h2>
Explanation:
The planets <em><u>Mercury and Venus </u></em> don't have a natural satellite.
Answer:
Hi bro /siso plss post in the English Hope it helpfull too
I believe it's globular and open are the main types.
