Hi sap

is not likely to be a limiting factor on a dolphin population.
a) predation
b) competition
c) drough
d) disease

i chose a, but i am not sure if it correct.

Predation Is not likely to be a limiting factor on a dolphin population. 
A) Predation 
B) competition
C) Drought
D) Disease 

I see that it's correct. Dolphins have been dealing with predators for millions of years. They've only been becoming extinct because of us humans from things like pollution. Their natural predators aren't affecting them too much.

Have a nice day! :)

True statement gravity force is more on bigger mass, less on smaller mass.all mass fall on planet with same acceleration and speeds

The answer will be d