An empty 250 ml beaker has a mass of 60 grams. When 100 mL of oil is added, the total mass of the beaker is 140 grams.
What is the mass of the oil alone?

A 150 mL
B 40 grams
C 200 mL
D 80 grams

(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.