An ecosystem has experienced a flood. which type of plants would you expect to see growing first after the flood?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

What is the definition for temperature inversion

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury