Answer:
Tropical plant fossils were found in Arctic areas.
Similar rock types are found across continents.
Explanation:
I found several researches on the similarities among the continents. Sorry I dont know the 3rd one
A fertilization is when they come together
Answer:
The molecule has 2 double bonds
Explanation:
Corresponds to propanediene (alkene with 3 carbons and 3 double bonds).
When saying the statement that it is a 3-carbon alkene, the only option is that it has two double bonds:
H2C = C = CH2 (carbon has 4 valence, sharing 4 electrons)