Answer:
The answer is demography.
Explanation:
Demogrpahers study places and regional and spatial concepts of how the world interacts with people.This essentially is a very important part of geography.
Geography
Population
Demographics
Answer:
Depending on the amount of liquid he has, he can use it to fill each test tube. he can do 8 orders per test tube :D
To accept all individuals and treat them equally.
Answer:
Wastewater treatment
Explanation:
The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water.