Because these isotopes decay more slowly, they can be used to date much older specimens.  Having read the above passage, choose the right answer to the following question (choices are it can be used to date older specimens or it can't be used to date old 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.  Having read the above passage, choose the right answer to the following question (choices are they will speed up or they will slow down ):   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.  Having read the above passage, choose the right answer to the following question (choices are reduced or increased ):   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.  Having read the above passage, choose the right answer to the following question (choices are increases or decreases ):   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.  Having read the above passage, choose the right answer to the following question (choices are cooler or warmer ):   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.  Having read the above passage, choose the right answer to the following question (choices are increase or decrease ):   A decrease in the size of a telescope results in a/an increase or decrease in ability to collect light?
decrease