The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how the genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
The decay equation is of the form

where
m(t) = the mass remaining after t minutes
m₀ = the initial mass
k = constant
Because the half-life is 3 minutes, therefore

Therefore
-3k = ln(0.5)
k = ln(0.5)/(-3) = 0.231
Because m₀ = 16 mg, the time, t, for the mass to decay to 1.0 mg is given by

Answer: 22 min (nearest integer)
McCarthyism, name given to the period of time in American history that saw Wisconsin Sen. Joseph McCarthy produce a series of investigations and hearings during the 1950s in an effort to expose supposed communist infiltration of various areas of the U.S. government.
Answer:
Bonaparte thus completed his coup within a coup by the adoption of a constitution under which the First Consul, a position he was sure to hold, had greater power than the other two. In particular, he appointed the Senate and the Senate interpreted the constitution.
Explanation:
It was a number of them. We can start with the threat to china's borders and very existence, when a large American army approached through north Korea. This would get china into the war with North Korea, and will last three years over 1 million Chinese casualites