A sample of physical evidence was heated with dry cupric oxide. The issuing gas turned lime water milky. Which element does the physical evidence
contain?
a. oxygen
b. hydrogen
c. carbon
d. bromine
e. chlorine

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.