A Gateway drug is one which one precedes the use of illegal or illicit drugs.
Gateway drug its means Habit forming drug that, while not itself addictive, may lead to the use of other addictive drugs.
<span>"many believe that alcohol and cigarettes are gateway drugs that increase the risk of subsequent involvement with illegal drugs"
</span>
Gateway drugs it is a noun.
Answer:
physical properties is that they solidify to form other features like mandara crater located mount Kilimanjaro and chemical properties is that they contain minerals which support grow up of plants example areas of mount Kilimanjaro
Roal Amunsen was the first.
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
