Ecologists conduct population studies to understand population dynamics by investigating how the increases or decreases over time. A. amount of resources
B. diversity of species
C. number of individuals
D. size of habitat

here's your

hope it

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .