Answer: X2Y3
Explanation: I had the same question ;) (and got it right)
Answer: The answer would be minerals. Synthetics are made by men, and shouldn't be found in the earth Vitamins are organic Cement is a mixture of an organic compounds and rarely found in nature.
Explanation:
“The basic principle of mass spectrometry (MS) is to generate ions from either inorganic or organic compounds by any suitable method, to separate these ions by their mass-to-charge ratio (m/z) and to detect them qualitatively and quantitatively by their respective m/z and abundance
So this is p1 over t1 = p2 over t2. So you do 880/250=x/303 and then cross multiply and divide
Convection is when cool air sinks and warm air rises. i am not 100% sure though