Answer:
most likely climate changes and or mass extinction
Explanation:
There is one significant figure
Answer:
A hydrocarbon containing a carbon - carbon double bond.
Explanation:
Alkene is hydrocarbon containing a
carbon - carbon double bond.
( Refer the attachment to understand more clearly )
6 electrons... 's' can hold 2..... 'd' can hold 10 and 'f' can hold 14