Because these isotopes decay more slowly, they can be used to date much older specimens.  Fred has an isotope that decays quickly. What is likely true about it it can be used to date older specimens or it can't be used to date old specimens?
it can't be used to date old specimens


(Question)
For a given medium, sound has a slower speed at lower temperatures.  If Jim turns the thermostat down in his room while listening to music, what will happen to the speed of the sound waves in the room they will speed up or they will slow down?
(Answer)
they will slow down


Ques: We also saw that adding resistors to a series circuit increases the total resistance of the circuit, causing the current to decrease.  Jim loves to build circuits. One day he builds a circuit that has less resistors then any other circuit he has built. Since the circuit has less resistors the amount of current in the circuit is reduced or increased?
Ans: increased


(Q).
Exhaling, or breathing out, decreases the size of the chest, which increases air pressure inside the lungs.  If Mary is running and race and begins to breathe hard, what happens to the air pressure in her lungs as she expands her chest increases or decreases?
(A).
decreases


Ques:If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.  Carl is studying climate change, and notes that more ultraviolet radiation is being trapped, which means the earth will be cooler or warmer?

Ans:warmer


Larger telescopes can collect more light.  A decrease in the size of a telescope results in a/an increase or decrease in ability to collect light?
decrease