Unless extraterrestrial humans enter Earth or people leave to inhabit another planet, net global immigration and emigration are both zero. Thus, to reduce the rate of global population change, the number of births must be reduced or the number of deaths must be increased.
The answer is D. Assessment is appropriate for infants and toddlers. It's actually recommended. Screenings of the children is not going to document their growth. There is technically a reliable way. And recording developmental milestones like their first word and when they start walking, crawling and running is extremely crucial in a child's learning process.
D) Applying an equal force at a location farther away from the rock.
