What does the 218 in polonium-218 represent?

Which position represents spring in the southern hemisphere? a) b) c) d)

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?