Answer:
where are the choices????
Radiometric dating is a kind of technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
Answer:
ideal machine is the machine in which input work is equal to output work....
output work is the work or energy that comes out of a process.
The work or energy supplied to a machine.
True. Common descent, at least, is a VERY controversial topic. Common Descent states that every species should have evolved from ONE SINGLE SPECIES (crazy, I know.)