Oxygen-18 is a naturally-occurring, stable isotope and is commonly used is scientific studies as a tracer. Using the periodic table, explain the difference between oxygen-18 and oxygen-16.

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?