Ahigh birth to death ratio leads to smaller populations

A high birth to death ratio leads to smaller populations.

This is false.                                                          

A high birth to death ratio means, that there are more births than deaths in a particular area. People are born at a higher rate than they die or the death rate is lower than the birth rate. This will lead to an increase in population.

i believe the answer would be b. hope it : )

b. to discover aspects of the natural world.

hopefully i .