Voltage is thebetween two points in a circuit. A-ion

B-potential difference

C-electric charge

D-force

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?